Other Ending Letters

Word Lengths Starting With F

All 417 Matching Words

fabiformShaped like a beanfabismAlternative form of favism.fabledomAll fables, collectively, and the worlds depicted in them.fabulism(literature) A literary form in which fantastical elements are placed into an everyday setting.facadism(architecture) the practice of retaining only the facade of an old building when redeveloping a site.facecam(colloquial) A live recording of the face or faces or a person or multiple people in an online video, especially let's play videos.faceclaimAlternative form of face claim.faceismPrejudice based on the appearance of somebody's face.facepalmTo bring one’s face down to one’s cupped hand or hands.faciendumSomething that must be done.facismMisspelling of fascism.factfem(slang) A radical feminist who uses persuasion and education in their approach.factionalismThe splitting of a group into factions.factotumA person employed to do all sorts of duties.factualismA form of evaluation that emphasizes the usage of facts, falsifiability, logic and reason.factum(law) Somebody's own act and deed.faddismThe behaviour of a faddist; following fads.fadomObsolete spelling of fathom.faeriedomAlternative form of fairydom.faerydomAlternative form of fairydom.fagdomThe state of being a fag (in the page or subordinate sense); servanthood.faggotism(offensive) Homosexuality.fagopyrismPhotosensitivity of the skin caused by the ingestion of fagopyrin.fahamThe orchid (Jumellea fragrans), from the islands of Réunion and Mauritius, whose leaves were once used in France as a substitute for China tea.faineantismfaineant attitudes or behaviourfairdomFairs generally; the realm or sphere of fairs.fairydomThe realm or sphere of fairies.fairyismBelief in fairies as supernatural beings.faitheism(slang, neologism) Atheism, with a belief that faith should not be criticized.faithismComfa (folk religion)fakeclaim(Internet slang, transitive, neologism) To call out (a person) on social media for allegedly faking a disorder.fakegasm(rare) A feigned instance of excitement.fakestream(informal, derogatory) The mainstream media, seen as propagating lies or misinformation.fakirism(neologism) The practices of fakirs.falciformSickle-shaped.falciparum(cytology) The parasitic protozoan Plasmodium falciparum that causes falciparum malariafalconiform(ornithology) Any falcon of the order FalconiformesfalernumA sweet spiced syrup used in Caribbean and tropical drinks.fallibilismThe doctrine that knowledge is never certain, but always hypothetical and susceptible to correction.falsedomThe sphere or realm of falseness.falsificationism(epistemology, philosophy) A scientific philosophy based on the requirement that hypotheses must be falsifiable in order to be scientific; if a claim is not able to be refuted, then it is not a scientific claim.falsismA claim that is self-evidently false, commonly used a rhetorical device.falsum(logic) An arbitrary contradiction, denoted ⊥.fam(informal) Clipping of family.famalam(slang) Alternative form of fam (“family”).fambamAlternative form of fam-bam.familialismAn ideology that prioritizes the family by advocating a welfare system that assumes that households, not the state, take responsibility for the care of their members.familiarism(uncountable) The quality of being intimate or friendly.familism(religion, now historical) The beliefs or practice of the Family of Love religious sect, active in sixteenth century England.fanam(historical) A former currency in southern India.fanaticismThe characteristic or practice of being a fanatic.fanatism(archaic) excessive intolerance of opposing viewsfanboyismBehaviour characteristic of fanboys; blind, aggressive devotion.fancam(by extension) An edit which incorporates fancams.fandemoniumFuror caused by or involving fans.fandomThe fans of a sport, activity, work, person etc., taken as a group.fanficdomThe domain of fan fiction and/or fanficcers.fanfilmA film created by fans and based around their topic of interest.fangdomThe community or sphere of vampires.fangirlismBehaviour characteristic of fangirls.fanhamAlternative form of fanam (“obsolete currency of India”).fanomAlternative form of fanam (“obsolete currency of India”).fantagonismAnger or hostility expressed by fans, especially towards creators.fantasmAlternative spelling of phantasm.fantasticismThe quality of being fantasticalfantomArchaic spelling of phantom.fanum(historical) The site of an Ancient Roman temple or shrine.fanwormAny annelid of the order SabellidafaqeerismAlternative form of fakirism.faqirismAlternative form of fakirism.faradism(medicine, now historical) Treatment with faradic electricity; faradization.farm(countable) A place where agricultural and similar activities take place, especially the growing of crops or the raising of livestock.faropenemAn orally active beta-lactam antibiotic belonging to the penem group.faschism(non-native speakers' English) Misspelling of fascism.fascinum(historical, occult) An ivory phallus used in certain ancient erotic rites.fascism(figurative, derogatory) Any extreme reliance on or enforcement of rules and regulations.fashionismDevotion to fashion; faddishness.fasoracetamA nootropic drug of the racetam family.fastidium(medicine, archaic) repugnance toward food; unwillingness to eatfastigiumAn apex or summit; culmination.fatalism(metaphysics, philosophy) The doctrine that all events are subject to fate or inevitable necessity, or determined in advance in such a way that human beings cannot alter them.fatherdomThe world, sphere, or unity of fathers; fathers collectively.fathom(nautical, US) A measure of distance to shore: the nearest point to shore at which the water depth is the value quoted.fatismAlternative form of fattism.fattismDiscrimination on the grounds of fatness.fatuism(obsolete) fatuityfaucismAlternative letter-case form of Faucism.fauvismAn artistic movement of the first decade of the 20th century which emphasized spontaneity and the use of extremely bright colors.fauxcellarmSynonym of ringxiety.fauxgasm(slang) A simulated orgasm.favellidium(obsolete) A compound algal fruit (favella).faviformShaped like a honeycomb.favism(medicine) Glucose-6-phosphate dehydrogenase deficiency: an X-linked recessive genetic condition that predisposes a person to hemolysis and resultant jaundice in response to certain triggers.favoritism(American spelling) Alternative spelling of favouritism.favouritism(British spelling) The unfair favouring of one person or group at the expense of another.faydomThe realm or sphere of faerie.featherdomThe world or sphere of birds.featurism(derogatory) A form of architectural design based around certain accentuated features.febfem(gender-critical slang) A (generally cisgender) bisexual woman who exclusively dates other cisgender women.federalismThe belief that such a system is superior to other forms of government.federationalism(uncommon) Tendency or preference towards having a federational structure, a federation, in which distinct bodies are united.federationismSupport for a federation.feederism(paraphilia) A paraphilia in which arousal is obtained from overfeeding or overeating.feedismSynonym of feederism (“paraphilia involving overfeeding or overeating”).feedroom(agriculture, hobby horsefarms) A room within a barn where feed is kept, blended, and readied for distribution to the livestock.feedstreamA fluid feedstock.feelgoodismAlternative form of feel-goodism.feliformAny carnivore of the suborder Feliformia, which are regarded as cat-like.fellahdomThe role or status of fellah (agricultural labourer).fem(LGBTQ, uncommon) Synonym of femme.femaledomWomen considered as a group; womankind.femalismA form of African feminism.femdom(BDSM, uncountable) Female domination; a sexual practice in which women dominate men or other people.femidomSynonym of female condom.femifascism(slang, offensive, derogatory, rare) Radical or militant feminism, intolerant of opposing views.feminationalism(neologism) The association between a nationalist ideology and some feminist ideas, specially when having xenophobic motivations.feminazism(derogatory) Aggressive militant radical feminism.femininism(rare) feminine behaviourfeminismA social theory or political movement which argues that legal and social restrictions on women must be removed in order to bring about equality of the sexes in all aspects of public and private life.feminocentrismfocus on women; a female-centered worldview (sometimes used pejoratively to imply such a focus is misandric)femonationalism(neologism) The association of a nationalist ideology with feminism, especially when having xenophobic motivations.femtogram(metrology) An SI unit of mass equal to 10⁻¹⁵ grams. Symbol: fgfemtomagnetism(physics) ferromagnetism that is controlled by femtosecond pulses of laser lightfenestrumA hole or opening.fenfuramA particular fungicide.fenobamAn imidazole drug with anxiolytic effects.fenoldopam(pharmacology) A synthetic benzazepine drug used as an antihypertensive.fenolopamMisspelling of fenoldopam.fenpiverinium(pharmacology) A particular antimuscarinic drug.feorm(historical) Alternative form of farm.feormfultumAlternative form of feorm-fultum.ferbamA particular fungicide.feretrum(historical) A kind of medieval reliquary or shrine containing the sacred effigies and relics of a saint.ferm(obsolete) rent for a farmfermiumA transuranic chemical element (symbol Fm) with an atomic number of 100.ferndom(botany) The world of ferns; ferns collectively.ferricenium(chemistry) The cation derived from ferroceneferriciniumAlternative form of ferrocenium.ferrimagnetism(physics) a form of antiferromagnetism in which some magnetization remains below a critical temperature (the Neel temperature)ferroaluminiumA ferroalloy of iron and aluminium.ferroaluminumAlternative form of ferroaluminium.ferrocenium(organic chemistry) The univalent cation [Fe(C₅H₅)₂]⁺ obtained by the oxidation of ferroceneferroceriumA pyrophoric alloy of iron and cerium that is used with a striker (a steel) to make the spark of a lighter or firestarter.ferrochromiumAn alloy of iron and chromiumferrogramA diagnostic image produced by ferrography.ferromagnesiumA ferroalloy of iron and magnesium.ferromagnetism(physics) The phenomenon whereby certain substances can become permanent magnets when subjected to a magnetic field.ferromolybdenumAn iron-molybdenum alloy.ferronickelplatinum(mineralogy) A tetragonal-ditetragonal dipyramidal silver white mineral containing iron, nickel, and platinum.ferroniobiumAn important alloy of iron and niobium.ferrotitaniumAn alloy of iron with 15-45% titanium; used in the manufacture of specialist steelferrouraniumA ferroalloy of iron and uranium.ferrovanadiumAn alloy of iron and up to 55% vanadium; used in the manufacture of specialist steelferrum(homeopathy) Any of various remedies made from iron-containing compounds.festuloliumA grass that is a hybrid of fescue and ryegrassfetichismArchaic form of fetishism.feticismObsolete form of fetishism.fetishismThe belief that natural objects have supernatural powers, or that something created by people has power over people.feudalismA social system based on personal ownership of resources and personal fealty between a suzerain (lord) and a vassal (subject). Defining characteristics are direct ownership of resources, personal loyalty, and a hierarchical social structure reinforced by religion.feuilletonismThe light, entertaining writing style associated with feuilletons.feydomThe state of being fey or doomed.feynmaniumThe hypothetical chemical element with atomic number 137.fibriformShaped like a fiber.fibrilliformHaving the appearance of a thin fibre or group of fibres; fibrous.fictionalism(philosophy) The doctrine that certain concepts are simply convenient fictionsfictocriticismA postmodern, anthropological style of writing that combines and bends elements of anthropology, gonzo journalism, fiction, and literary criticism.fideicommissumA benefit bequeathed to a beneficiary who inherits the benefit, subject to the obligation of bequeathing it to another.fideism(philosophy) The doctrine that faith is the basis of all knowledge.fiefdom(by extension, chiefly derogatory) Any organization in the control of a dominant individual.fienddomAlternative form of fiendom.fiendismFiendish behaviour.fiendomThe state, sphere, realm, or world of fiends; fiends, collectively.figurism(Christianity, historical) An intellectual movement of Jesuit missionaries at the end of the 17th and the beginning of the 18th century, whose participants viewed the I Ching as a prophetic book containing the mysteries of Christianity, and prioritized working with the Qing Emperor (rather than with the Chinese literati) as a way of promoting Christianity in China.filapodiumMisspelling of filopodium.filariformResembling filaria or nematode worms.filestream(programming) A data stream providing access to the contents of a file.filesystemAlternative form of file system.filgrastimA granulocyte colony-stimulating factor (G-CSF) analogue used to stimulate the proliferation and differentiation of granulocytes.filibusterism(US) The practice of forcefully and unauthorisedly acquiring control of foreign land.filiciformShaped like a fern or like the parts of a fern leaf.filiformShaped like or resembling a thread or filament; filamentous.filipodium(biology) A hairlike projection, especially in parts of the brain, or as used for locomotion by some amoebasfillumPronunciation spelling of film.filmA thin layer of some substance; a pellicle; a membranous covering, causing opacity.filmdomThe film (movie) industry; the people who work in that industry.filmiformIn the form of a film.filopodium(cytology) A slender cytoplasmic projection which extends from the leading edge of a migrating cellfiltergram(astronomy) A photograph of the sun at a particular frequency range (by means of a variable filter).filtrumArchaic form of philtrum.filum(anatomy) a filamentous anatomical structurefindom(BDSM, uncountable) Syllabic abbreviation of financial dominationfinitism(mathematics, philosophy) An extreme form of constructivism, according to which a mathematical object does not exist unless it can be constructed from natural numbers in a finite number of steps.finstagramSynonym of finsta.firearmA personal weapon that uses explosive powder to propel a projectile often made of lead.firebrandismThe behaviour or attitudes of a firebrand.fireroom(nautical) stokeholdfirestormA fire whose intensity is greatly increased by inrushing winds.fireteam(US, military) A small unit of infantry.firewormThe larva of any of several tortricid moths (family Tortricidae).firm(UK, business) A business partnership; the name under which it trades.fiscalismThe idea that taxation should form a central part of a government's economic policy.fishcamA webcam used to capture and publish images of fish.fishdomThe state of being a fish, or of belonging to the world of fish; fish collectively.fishwormA worm used as bait in angling.fissiparism(biology) fission (splitting to form two daughter cells.)fissuriformThat resembles a fissurefistuliform(archaic, rare) Shaped like a fistular or pipe; having a tubular shapefistulogram(medicine) An X-ray taken of a fistula after a contrast medium has been injected.fivegram(linguistics) An n-gram consisting of five items from a sequence.fixism(biology, chiefly historical) The theory that the species alive today are identical to those of the past and that evolution does not happen.flabelliformShaped like a fan; flabellateflabellumA large fan used for religious ceremonies.flagellantismThe act of whipping oneself, typically for religious penance or for sexual excitementflagelliformshaped like a whipflagellum(biology) In protists, a long, whiplike membrane-enclosed organelle used for locomotion or feeding.flagwormA worm or grub, such as Corthylus columbianus (chestnut timber worm, Columbian timber beetle), found among flags and sedge.flamA freak or whim; an idle fancy.flapperdomThe realm or sphere of flappers (young women).flapperismThe behaviour of flappers (young women).flatdom(chiefly UK) The realm or sphere of apartment buildings.flatformA type of shoe with a flat platform sole.flatwormAny of very many parasitic or free-living worms, of the phylum Platyhelminthes, having a flattened body with no skeleton or body cavity.flavobacteriumAny of many Gram-negative rod-shaped bacteria, of the class Flavobacteriia ^([sic]), that occur in soil and water, and are mostly pigmented and photosynthetic.fleamA sharp instrument used to open a vein, to lance gums, or the like.flectopodium(cytology) Flexible cytoplasmic protrusions that modify the normal contractile activity of pericytes.flehm(intransitive) To exhibit the flehmen response, i.e., to draw back the lips, allowing scent to reach the Jacobson’s organ, an auxiliary olfactory organ found in many animals.fleroviumThe chemical element with atomic number 114.fleshwormA worm that feeds on flesh.fletazepam(pharmacology) A benzodiazepine drug with strong muscle relaxant properties.flexitarianism(US) The practice of eating mainly vegetarian food, but making occasional exceptions for social, pragmatic, cultural, or nutritional reasons.flimClipping of flim-flam (“confidence trick”).flimflamTo swindle or cheat.flipismA pseudophilosophy under which all decisions are made at random, as if by flipping a coin.floatsamAlternative form of flotsam.floodgum(Australia) The flooded gum, Eucalyptus rudis.floom(US, archaic) A flume, as in a mill flume.flopdom(slang) The realm of flops or failures.florentium(physics, chemistry) (disused nomenclature) Promethium.floretumA garden where flowers are grown for research purposes.floriformShaped like a flower.florilegiumA collection of flowers.flotsamDebris floating in a river or sea, in particular fragments from a shipwreck.flowgramAn image in Standard flowgram formatfluazinamA broad-spectrum arylaminopyridine fungicide.fluctuogramA graphical representation of the interaction and binding of protein moleculesfludiazepam(pharmacology) A benzodiazepine drug, closely related to diazepam.fluidiformHaving the form of a fluid.fluidism(medicine, obsolete) The doctrine that the fluids of the body are the source of its vital properties and are susceptible to disease.fluidrachmAlternative form of fluidram.fluidramThe dram (unit of volume).fluigram(archaic, medicine) A cubic centimetre.flukewormAny usually parasitic worm in the class Trematoda.flumetsulam(organic chemistry) The sulfonamide herbicide N-(2,6-difluorophenyl)-5-methyl-[1,2,4]triazolo[1,5-a]pyrimidine-2-sulfonamideflunitrazepam(organic chemistry, pharmacology) A short-acting benzodiazepine derivative with relatively long-lasting sedative effects, used as a hypnotic and as a premedication for anesthesia; 5-(2-fluorophenyl)-1,3-dihydro-1-methyl-7-nitro-2H-1,4-benzodiazepin-2-one, C₁₆H₁₂FN₃O₃.flunkeydomThe state of a being a flunkeyflunkeyismAlternative form of flunkyism.flunkydomThe state of being a flunkey.flunkyismThe state of being a flunkeyfluoroform(organic chemistry) The haloform CHF₃ that is the fluorine analogue of chloroformfluorogramAn image produced by fluorographyfluoronium(chemistry) the univalent H₂F⁺ cation, derived from fluorane.flurazepam(pharmacology) A benzodiazepine (trademark Dalmane) that is closely related structurally to diazepam and is used as a hypnotic in the form of its dihydrochloride C₂₁H₂₃ClFN₃O·2HCl to treat insomnia and to induce periods of restful sleep.flustriformHaving colonies formed of nonrigid lightly calcified branchesflutazolam(pharmacology) A benzodiazepine drug with sedative, muscle relaxant, anticonvulsant, and anxiolytic properties.flutemazepam(pharmacology) A 3-hydroxy benzodiazepine derivative and analogue of temazepam that has hypnotic, sedative, amnesiac, anxiolytic, anticonvulsant and skeletal muscle relaxant properties.flutoprazepam(pharmacology) A benzodiazepine drug.fluxogramA form of flowchartfluxonium(physics, electronics) A superconducting artificial atom modelled from Josephson junctionsfoamA substance composed of a large collection of bubbles or their solidified remains, especially:focalism(psychology) Synonym of anchoring.foetalismAlternative form of fetalism.fogdomA state of obscurity; confusion; absence of clarity.fogeydomThe state of being a fogey.fogeyismAlternative form of fogyism.fogram(obsolete) A fogey; a person with old-fashioned views.fogrumAlternative form of fogram.fogydomAlternative form of fogeydom.fogyism(colloquial) The behaviour, beliefs, or principles of a fogy.foliumA leaf (2 pages) of a codex or manuscript.folklorismInvention or adaptation of folklore, including any use of a tradition outside the cultural context in which it was created.folliculotropismThe condition of being folliculotropicfondomThe kingdom of a fon.fontomfrom(music) An Ashanti talking drumfoodgasm(slang) A pleasurable sensation from eating food.foodismAn exaggerated interest in the preparation, presentation and consumption of food.foodstagram(uncountable, Internet slang) The community of foodies and food-oriented accounts on Instagram, characterized by artful photos of food.foodyismAlternative form of foodie-ism.fooldomThe state or essence of being a fool.foomThe sound of a muffled explosion.footfetishism(rare) Alternative form of foot fetishism.footroomSpace for a person's feet, especially while seated.foppismfoppish behaviourfoquismSynonym of focalism (“revolutionary strategy”).foramA foraminifer.foraminiferum(obsolete, now nonstandard) Synonym of foraminifer.forcipiformforceps-shapedfordeem(transitive, obsolete) To condemn.fordim(transitive, obsolete) To dim; darken; obscure.forearm(anatomy) The part of the arm between the wrist and the elbow.forebeamThe breast beam of a loom.foreboom(nautical) The boom of the foremast.foreclaim(transitive) To claim in advance; claim beforehand.foredeem(intransitive, obsolete) To judge, form a judgement of, or declare beforehand; foretell; forecast; presage.foredoomA doom that is predicted; destiny.foredreama dream dreamt in advance, especially regarding a future condition or event; a hopeful expectation; a hopeforeformAn early or previous form; protoformforegleamA gleam or glimpse of the future; foreglimpse.foreignism(uncountable) A tendency to favor what is foreign.foreprism(spectroscopy) A prism the light is passed through before entering a spectrometer.foreroomA room near the entrance of a building.forestem(nautical) The front part of a vessel.forestreamThe initial, early, or forward-positioned part of a stream (all senses); a stream occurring at the ahead or front (of a thing)forficiformShaped like shears or scissors.form(heading, physical) To do with shape.formalismStrict adherence to a given form of conduct, practice etc.formamidinium(attributive, organic chemistry) A kind of cation with the chemical formula [R₂N-CH=NR₂]⁺.formenismA form of Christian-oriented, female-led masculism in South Africa.formicariumA vivarium used for the study of ants and ant colonies.formroomAlternative form of form room.formularismA formulaic approach or habit.formulismAn over-reliance on, or adherence to formulaeformyliumA positively-charged cation with the formula HCO⁺, related to formaldehyde, aldehydes, and formyl.fornicatoriumA bedroom, or any room used for fornication; often a small podlike room within a larger fornication-related establishment; in modern times, mainly found in Japan, Hong Kong, and Taiwan.forniciformarchlike or vaulted in formfortuitismThe doctrine that chance is involved in natural events rather than absolute determinism.forumA place for discussion.fossildomThe realm or sphere of fossils.fossilismThe science or state of fossils.fossorialism(biology) The habit of being fossorialfoundationalism(epistemology) The doctrine that beliefs derive justification from certain basic beliefsfoundherentism(philosophy) A theory of justification that combines elements from the two rival theories addressing infinite regress: foundationalism and coherentism.fourgram(linguistics) An n-gram consisting of four items from a sequence.foveiformResembling a fovea.fpmInitialism of feet per minute.fractionalism(politics) The division of a political party into groups that may have differing ideologies.fractogramA graph of a detection signal vs. time, derived from a field-flow fractionation process, in which various substances present in a fluid get separated based on their flow velocities under some applied external influence, such as an electric field.fraenumAlternative form of frenum.fragmentarismA fragmentary style or approach.fragmentism(literature) An Italian literary movement, from the period just before the First World War, characterised by the use of short pieces of dramatic prose and fragmentary imagesfragmentogramAn image produced by fragmentographyfraimObsolete form of frame.frambesiform(medicine, of a rash) Resembling raspberries.framboesiformAlternative form of frambesiform.franciumThe chemical element (symbol Fr) with an atomic number of 87. It is an intensely radioactive alkali metal that is not found in nature.fraternalismfraternal policies or practices; brotherlinessfraternism(obsolete) fraternizationfreakdomThe state or quality of being freakish, strange, or bizarre.fream(US slang, 1950s–1960s) social outsider, misfit, loser, usually restricted to malesfreedom(uncountable) The state of being free.freeformAlternative spelling of free-form.freeganismThe practice of living as a freegan.freemartinismThe abnormal condition of a freemartin.freemiumOffering basic services for free while charging a premium for advanced or special features.freestreamThe air far upstream of an aerodynamic body, i.e. before the body has a chance to deflect, slow down or compress the air.fremAlternative form of fremd.freneticismThe quality or state of being frenetic.frenulum(anatomy) A small fold or ridge of tissue that supports or restrains the motion of the part to which it is attached, in particular a fold of skin beneath the tongue, or between the lip and the gum.frenum(anatomy) Synonym of frenulum.frequentismAn interpretation of probability in terms of frequency, often specifically as the limit of the relative frequency of an event as the sample size approaches infinity.fresherdomThe realm or state of freshers, or freshmen.fretumA strait; a channel.fribbledom(archaic) Frivolous or trifling behaviour.fribbleism(archaic) frivolityfriendom(nonstandard) The state or condition of being friends; friendhood.frigidarium(historical, Ancient Rome) In Ancient Roman baths, a room with a bath of cold water.frimFlourishing; thrivingfringilliform(zoology) Resembling or relating to the finches.frivolism(archaic) frivolityfrogdomThe state of being a frog, or of belonging to the world of frogs; frogs, collectively.fromUsed to indicate source or provenance.frondiformShaped like a frond.frontierism(politics) Support for a frontier; especially, the argument advanced by historian Frederick Jackson Turner in 1893 that a settler colonial exceptionalism, under the guise of American democracy, was formed by appropriation of the rugged American frontier.frotteurismA paraphilia involving sexual arousal from rubbing one’s genitalia against another person, usually a stranger.fructiformShaped like a fruit.frugalismThe practice of being frugal.fruitarianismThe practice of being a fruitarianfruitwormThe larva of any of several moths; they are responsible for damage to many types of fruit crop.frum(Judaism) Pious, observant; committed to obeying all the laws of Judaism.frustrumMisspelling of frustum.frustulumThe silica-based cell wall of a diatomfrustumA cone or pyramid whose tip has been truncated by a plane parallel to its base.fruticetumA kind of arboretum featuring shrubs and bushes rather than trees.fuckheadism(vulgar, rare, nonce word) The misbehavior typical of a fuckhead.fuckroom(slang, vulgar) Rare form of fuck room.fugitivismThe state of being a fugitive.fulcrum(mechanics) The support about which a lever pivots.fulham(archaic, UK, slang) Alternative form of fullam (“loaded die”).fullam(archaic, UK, slang) A false die; a die intentionally loaded, or unevenly weighted, so that it always rolls a specific number.fum(mythology, obsolete) The fenghuang, a mythological Chinese bird.fumarium(history) A smoke chamber used in Ancient Rome to enhance the flavor of wine.fumatoriumAn airtight compartment in which vapour may be generated to destroy germs or insects; especially, the apparatus used to destroy San Jose scale on nursery stock, using hydrocyanic acid vapour.fumigatoriumSynonym of fumatorium.funambulismThe art of walking on a tightrope or a slack-rope.functionalism(philosophy) The definition of mental states in terms of their causes and effects.fundamentalism(religion) The tendency to reduce a religion to its most fundamental tenets, based on strict interpretation of core texts.fundiformResembling or arranged in the form of a sling; specifically designating the lower part of the inferior constrictor muscle of the pharynx (cricopharyngeal muscle), and the fibers of this part of the muscle.fungariumA collection of preserved specimens of fungus.fungasm(slang) Fun at an orgasmic level of intensity.fungiformHaving the shape of a mushroom; especially, the archetypical such shape, suggesting a cap and stem.fungilliformShaped like a small fungus.funiform(chiefly biology, especially botany) Resembling a rope or cord.funiliform(botany) tough and flexible like a cordfunnelformHaving the shape of a funnel.funneliformRelating to fungi of the genus Funneliformisfurcasternum(entomology) The posterior part of an insect sternum bearing the furcafurculum(anatomy) furcula (wishbone of birds)furdom(furry fandom) The realm or sphere of furries.furrydomThe realm or sphere of furries.furryismThe practice of being a furry.fusarium(biology) Any of various fungi, of the genus Fusarium, some of which are pathogenic to plants and animals.fusiform(chiefly botany, zoology) Shaped like a spindle with yarn spun on it; having round or roundish cross-section and tapering at each end.fusionismThe political practice, principle or theory of forming groups.fusobacteriumAny bacterium of the genus FusobacteriumfustianismThe practice of writing fustian; pomposity in writing.futilitarianismThe belief that all human activity is futile.futurismThe study and prediction of possible futures.fwm(Internet slang, text messaging, vulgar) Initialism of fuck with me.