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sacchulmin(archaic, chemistry) An amorphous humin-like substance resembling sacculmic acid, and produced together with it.saddlehornA protruding part of a saddle to which a rope can be tied to control the neck of the animal.saframycin(medicine) Any of a family of antitumor antibiotics, produced by Streptomyces lavendulae, that have a complex, polycyclic structure.saginationThe act of saginating; fattening.salcatonin(pharmacology) A calcitonin hormone present in salmon.saleswomanA woman whose occupation it is to sell things.saleswomenplural of saleswomansalicortin(organic chemistry) A phenolic glycoside 2-(β-D-glucopyranosyloxy)benzyl (1S)-1-hydroxy-6-oxo-2-cyclohexene-1-carboxylate that is a secondary metabolite in many plantssalientian(biology) Any amphibian of the clade Salientia; frogs and toads, those of order Anura and extinct relatives of other orders.salinationA treatment with a salt solution.salivarianRelating to salivariasalivationThe process of producing saliva.salnomycinMisspelling of salinomycin.salpingianSynonym of salpingeal.salseparinSynonym of sarsaparillin.salutationA greeting, salute, or address; a hello.salvatiounObsolete form of salvation.salvinorinAny of several structurally-related compounds found in the Salvia divinorum plant, of which only salvinorin A is known to be active in humans.samandarinThe main steroidal alkaloid of the skin glands of the fire salamander (Salamandra salamandra). It is extremely toxic.sangdragonThe tree Pterocarpus indicus.sanitarianOf or pertaining to health, or the laws of health; sanitary.sanitationThe hygienic disposal or recycling of waste.sapintoxinAny of a class of irritant phorbol esters obtained from milktrees of the genus Sapium.sarcolipin(biochemistry) A protein that regulates thermogenesis in mammal musclessarcolysinThe nitrogen mustard compound melphalan.sarcopilinMisspelling of sarcolipin.sarcotoxinAny of a group of antibacterial proteins found in the flesh fly (genus Sarcophaga).sartoricin(organic chemistry) A polyketide metabolite of Aspergillus.sasiranganA method (originated from South Kalimantan; invented by Banjarese people) of producing colored designs on textiles by dyeing them, usually with tie or stitch techniques.satavaptanA certain vaptan drug proposed for the treatment of hyponatremia and ascites.satratoxinAny of a group of trichothecene mycotoxins present in some ascomycetessaturationThe act of saturating or the process of being saturated.scaffoldin(biochemistry) A large glycoprotein, one of the subunits of a cellulosome.scandicainSynonym of mepivacaine.scanlation(comics, chiefly manga) The process of scanning and translating foreign-language comics (especially Japanese manga or Korean manhwa) into the translator's language, for free distribution over the Internet.scaritoxinA marine toxin that can cause ciguatera.scattergun(firearms, informal) Synonym of shotgun.schistatin(biochemistry) A particular disintegrin.scholarian(historical) A member of the Scholae Palatinae, an elite military guard unit of Ancient Rome.schoolemanObsolete spelling of schoolman.scienceman(rare, nonstandard) Synonym of scientist.scintillonThe mechanism for particulate-based bioluminescence.sciopticon(historical) A kind of magic lantern.scituation(hypercorrect) Obsolete form of situation.sclerostin(biochemistry) A glycoprotein that has an antianabolic effect on bone formation.scopoletinA coumarin found in the roots of plants in the genus Scopolia.scoriationA sloppily cut groove, furrow, or trench, characterised by the presence of refuse material from which it was cut.scortation(obsolete) lewdness, fornicationscreenburnDamage caused to certain types of computer screens where a frequently-displayed image "burns" a dull copy of itself onto the screen, and remains permanently visible.screensmanAlternative form of screenman (“type of mine worker”).scrimption(UK, dialect, archaic) A small portion; a little bit; a scrap.scrubwoman(US) A woman employed to do general housework, such as cleaning a house or office.scruncheonAlternative form of scrunchion.scrunchion(Canada, Newfoundland, usually in the plural) A small piece of pork rind or fatback fried until rendered and crispy.scrutation(obsolete) Search; scrutiny.scygonadin(biochemistry) An antimicrobial protein present in the crab Scyllascyllarian(obsolete, zoology) Any of the family Scyllaridae of crustaceans with depressed body and broad, flat antennae; a slipper lobsterscyphozoanAny true jellyfish of the class Scyphozoa.scytonemin(organic chemistry) A polycyclic pigment present in many cyanobacteriascytovirinAn antiviral protein isolated from the cyanobacteria Scytonema varium.secondbornBorn as the second child to parent or family.secretogenAny substance that induces secretionsectionman(rail transport, US, Canada) A railroad worker who maintains and patrols the track.seganserinA serotonin antagonist.sejunction(psychology) An interruption of the continuity of association-complexes which leads to a breaking up of the personality.sekanjabinAn Iranian syrup (or the drink made by diluting it) producing by boiling water, dissolving sugar in it, and adding vinegar; the drink is often spiced with mint.selamectin(veterinary medicine, pharmacology) A topical compound used in veterinary medicine that disables parasites by replacing glutamate in their muscle synapses.selenatian(mineralogy) Containing selenate anions.selenation(chemistry) Reaction with a compound of seleniumselenelionA lunar eclipse occurring as the Moon sets, simultaneously with sunrise.selenitian(mineralogy) Containing selenite anions.semaphorin(biochemistry) Any of a class of proteins that assist growing axons to find an appropriate target and to form synapsessemibarrenPartly barren.semicolumnA half column; a column bisected longitudinally, or along its axis.semifrozenHalf or partially frozen.semiglutin(biochemistry) A peptone-like body, insoluble in alcohol, formed by boiling collagen or gelatin for a long time in water.semihiddenPartly or almost concealed.semimadmanA man who is somewhat or partly mad.semimodernSomewhat or partly modern.semimoltenPartly or somewhat molten.seminarianSomeone who studies at a seminary.semination(also figurative) The act of sowing or spreading.semiprovenproven to a certain extentsemisolemnSomewhat or partly solemn.semitariansemi-vegetarian, a person who is sometimes vegetariansemivirginAlmost pristine or untouched.semophorinMisspelling of semaphorin.separationThe act of disuniting two or more things, or the condition of being separated.seperationMisspelling of separation.seponation(pharmacology) Discontinuation, especially of a psychoactive drug.septillion(US, modern British & Australian, short scale) A trillion trillion: 1 followed by 24 zeros, 10²⁴.seralbumenA form of albumin found in the blood serum of animals.seralbuminalbumin of the bloodsermorelin(pharmacology) A growth hormone–releasing hormone analogue.serostrainSynonym of serovar.serotropinA synthetic human growth hormone used by bodybuildersserralysinserratiopeptidaseservicemanA man who serves in the armed forces.servicemenplural of servicemanservingmanA male servant.serylation(organic chemistry) Reaction with a seryl groupseverationA severing or cutting.sevofluransevoflurane, when used as an anaestheticsexahedron(rare) Synonym of hexahedron.sexduction(biology) A form of bacterial conjugation involving the F-plasmid.sextillion(US, British, Australia, short scale) A trillion billion: 1 followed by 21 zeros, 10²¹.sextortion(colloquial) A form of sexual extortion; the extortion of a person through the use of the history of their sexual conduct (such as saved sexting messages).shandrydan(dated) A hooded chaise; (later, jocular) any rickety old-fashioned vehicle.shantytownAn area containing a collection of shacks, shanties or makeshift dwellings.shatavarin(organic chemistry) Any of a group of steroidal saponins found in Asparagus racemosus.shaughraun(Ireland, Canada) A wanderer; a vagabond.shenanigan(intransitive) To play a deceitful confidence trick; also, to carry out an act of mischief.shentleman(UK, dialect, nonstandard) gentlemanshieldfernAlternative form of shield fern.shieldsmansomeone who carries a shieldshigatoxinAlternative form of Shiga toxin.shinaniganAlternative spelling of shenanigan.shinkansen(rail transport) A Japanese high-speed railway line.shipbrokenSynonym of shipwrecked.shitgibbon(linguistics) A type of compound word used as an insult, consisting of a single-syllable expletive, followed by an absurd or innocuous two-syllable noun that usually forms a trochee.shitgoblin(slang, vulgar, humorous) A rude, obnoxious, or contemptible person.shitmuffin(colloquial, vulgar, humorous) An obnoxious or contemptible person.shituationPronunciation spelling of situation.showpersonA showman or showwoman.sialokininAny of a group of vasodilatory tachykinins in the saliva of the mosquito Aedes aegyptsialomucinAny mucin derived from sialic acidsialorphinA peptide that is an exocrine and endocrine signaling mediatorsialyationAlternative form of sialylation.sibilationA hissing sound.sibrafiban(pharmacology) A so-called superaspirin used to prevent blood clots.sideburden(geology) The rock and subsoil that lies next to a mineral deposit such as a coal seam.sidepersonA sideman or sidewoman.sideration(obsolete) The state of being siderated, or planet-struck.siebenbein(mathematics, physics) Synonym of heptad.siguazodan(pharmacology) A phosphodiesterase inhibitor.silanationSynonym of silanization.silicatein(biochemistry) An enzyme used by sponges to capture silicate and build silica nanostructuressilicatian(mineralogy) Containing silicate anions.silicationAny process that adds silicon to a material.silkscreenTo use a silkscreen to apply an image.silverskinA silverskin onion.silydianin(organic chemistry) (+)-2,3alpha,3aalpha,7a-Tetrahydro-7aalpha-hydroxy-8-(4-hydroxy-3-methoxyphenyl)-4-(3alpha,5,7-trihydroxy-4-oxo-2beta-chromanyl)-3,6-methanobenzofuran-7(6alphaH)-one, one of the components of silymarinsilylation(chemistry) The introduction of one or more silyl groups into a molecule.simplician(obsolete) One who is simple; a simpleton.simulationSomething that simulates a system or environment in order to predict actual behaviour.sinefungin(pharmacology) A particular antifungal drug.sinensetin(organic chemistry) A methylated flavone found in Orthosiphon aristatus var. aristatus (syn. Orthosiphon stamineus).sinequanonAlternative spelling of sine qua non.sipunculanAny of many unsegmented marine worm-like animals, of the phylum Sipuncula, the peanut wormssirodesmin(organic chemistry) Any of a certain group of fungal phytotoxinssitaxentan(pharmacology) A drug for the treatment of pulmonary arterial hypertension.sitosterinSynonym of beta-sitosterol.sixtysevenNonstandard form of sixty-seven.skateathonA charity event in which participants skate a long distance.skillenton(nonstandard) Pronunciation spelling of skeleton.skimingtonAlternative form of skimmington.skimmeltonAlternative form of skimmington.skimmertonAlternative form of skimmington.slammerkin(now rare, historical) A loose women's morning gown, popular in the eighteenth century.smilagenin(organic chemistry) A derivative of sapogenin that is used medically to treat cognitive dysfunctionsmithereen(rare, usually in the plural) A tiny fragment or splinter.smoothelin(biochemistry) A cytoskeletal protein fund only in smooth muscle cells.snapdragon(countable) Any plant of the genus Antirrhinum, with showy yellow, white or red flowers.snatiation(rare) A medical disorder characterized by uncontrollable bursts of sneezing brought on by fullness of the stomach.snoozathonAlternative form of snoozeathon.snowdragon(rare) A visual representation of a dragon made from snow.snowperson(uncommon) Snow sculpted into a human figure, a snow figure: a snowman or snowwoman.soblidotinA dolastatin that inhibits tubulin polymerization, resulting in the induction of apoptosissoftspokenAlternative form of soft-spoken.solabegron(organic chemistry, pharmacology) A drug that acts as a selective agonist for the β3 adrenergic receptor.solenacean(zoology) Any member of several species of marine bivalve shells belonging to the family Solenidae.solenopsin(biochemistry, organic chemistry) An alkaloid, with chemical formula C₁₇H₃₅N, that is considered the primary toxin in fire ant venom and that inhibits angiogenesis via the phosphoinositol-3 kinase signaling pathway.solifidianA person who believes that faith alone (as opposed to good deeds) brings salvation.solitarian(obsolete) A hermit; one who is solitary.somatrogonA medication for the treatment of growth hormone deficiency.somatropinA pharmaceutical preparation of human growth hormone (human somatotropin), today invariably a recombinant version.sonicationThe process of disrupting or homogenizing something, usually a chemical solution or biological medium, with sound waves.sonofusionA nuclear fusion reaction hypothesized to occur during sonoluminescence.sophoradin(organic chemistry) An isoprenyl chalconoid found in the herb Sophora tonkinensis.soundwomanA female audio technician or soundman.souterrain(archaeology) An underground chamber or passage sometimes used as a store, especially one associated with Iron Age settlements.soxhlationextraction by means of a Soxhlet extractorspaceflownflown on a spaceflightspacewomanA female astronaut.spallation(engineering, materials science) Fragmentation due to stress or impact, or any pattern of surface damage created thereby.spammation(slang) The act of spamming; a body of spam textsparatoxinAny of a group of toxins produced by huntsman spiderssparsentan(pharmacology) An antagonist to endothelin receptor type A and angiotensin II receptor type 1, used in the treatment in primary immunoglobulin A nephropathy.spearwomanA female warrior who fights with a spear.speciation(taxonomy) The process by which new distinct species evolve.spectation(archaic, rare) Regard; aspect; appearance.spellathon(chiefly Australia, New Zealand) A spelling bee held to raise money for charity.speltermanA person involved in the manufacture of spelter (type of metal).spelunceanOf or relating to spelunking, the exploration of underground caverns.spendathon(informal, economics) A period of intense spendingspermatoon(biology) A spermoblast.spheniscan(zoology, rare, archaic) Any banded penguin of genus SpheniscusspherationThe process of becoming spherical.spheroidin(biochemistry) A protein present on the surface of some poxvirusesspiketrainA series of related spikes (typically on a graph or an oscilloscope)spinacetin(organic chemistry) A methylated flavonol present in spinachspiramycin(pharmacology) A macrolide antibiotic used to treat toxoplasmosis.spiropyran(organic chemistry) Any spiro compound in which one of the rings is a pyranspiroxepin(pharmacology) An antidepressant drug.spitpoison(obsolete, rare) A calumniator.splashdownThe act of landing in water, as by a space capsule or rollercoaster.spoilationA spoiling or ruining; destruction.spokestoon(television) A preestablished cartoon character licensed to endorse a product.spoliationThe action of destroying or ruining; destruction, ruin.spriferminhuman recombinant FGF18, as a candidate drug to treat knee osteoarthritissquamation(zoology, uncountable) The condition or character of being covered with scales.stablecoinA cryptocurrency with price stability by design, often pegged to a stable asset such as the US dollar.stagnation(uncountable) The state of being stagnant; (countable) an instance of this.stallation(obsolete) installation (as of a person into office)stannation(chemistry) Any metalation reaction involving tin atoms.staphopain(biochemistry) Any of a family of endopeptidases present in Staphylococcusstarlitten(archaic or poetic) starlitstarvationA condition of severe suffering due to a lack of nutrition.staurozoanAny member of the class Staurozoa; a stalked jellyfish.staycation(informal) A vacation spent at or close to home.stealthbanSynonym of shadowban.stearoptenAlternative form of stearoptene.stellation(mathematics) The construction of a stellated polyhedron (or other polytope) by extending edges or planes.stentorian(of a voice) Loud, powerful, booming, suitable for giving speeches to large crowds.stepcousinA nephew or niece of someone's stepparent; a child of someone's stepaunt or stepuncle (in the sense of a sibling of someone's stepparent).stephanion(anatomy) The point on the side of the skull where the upper temporal line, or upper edge of the temporal fossa, crosses the coronal suture.sticharionThe outer clerical garb worn by clergy in the Greek Orthodox Church, corresponding to the alb in Latin-Rite Catholic Churches.stickwomanA simple drawing of a woman with lines to represent limbs and torso.stigmarianRelating to the fossil roots known as Stigmaria.stockwomanA female stockman.stoichedon(epigraphy) Text written such that the letters are arranged as rows and columns within a grid arrangement.stonemasonOne who works in stone.storewomanA warehousewoman.storiationA decoration with scenes telling a story, usually from history or mythology.straighten(transitive) To cause to become straight.stramazoun(obsolete) A direct descending blow with the sword edge.strategian(archaic or non-native speakers' English) A strategist.strawwoman(rare) A false caricature of a woman.streightenArchaic spelling of straighten.strengthen(transitive) To make strong or stronger; to add strength to; to increase the strength of; to fortify.strictinin(organic chemistry) A particular ellagitannin.strobotronA cold cathode tube designed for high-current narrow pulses, used in high-speed photography.strokesmanThe member of a rowing team who rows the aftermost oar, and whose stroke is to be followed by the rest.studmuffinAlternative form of stud muffin.stuntwomanA woman who performs stunts.stupration(obsolete) Rape.sturionian(zoology, dated) sturgeonsuaviationAmorous kissing.subcaptainA subordinate captain.subcaptionA caption that is subordinate to another caption.subception(psychology) An unconscious perceptual defense of applying strategies to prevent a troubling stimulus from entering consciousness.subchlorin(organic chemistry) A macrocyclic compound derived from chlorin by removing one quarter of the ring with one pyrrole group.subclavian(anatomy) Relating to or denoting an artery or vein which serves the neck and arm on the left or right side of the body.subductionThe action of being pushed or drawn beneath another object.subfactionA faction of a faction.subforemanA lesser or subsidiary foreman.subhorizonBelow a horizon.subjectionThe act of bringing something under the control of something else.subkilotonBelow one kiloton.sublexiconA lexicon forming part of a larger lexicon.submersionThe act of submerging, or the state of being submerged; immersionsubmissionThe act of submitting or yielding; surrender.subpatternA pattern that is contained in another, larger pattern.subpolygonA polygon forming part of another polygon.subportionA lesser portion; part of a portion.subreption(Catholicism) The act of obtaining a favour or grant by unfair representation through suppression or fraudulent concealment of facts.subsaharan(rare) Alternative form of sub-Saharan.subsectionA defined part of a section.subsessionA subsidiary session (of a conference, symposium, etc.)substationA satellite police station serving one neighborhood or part of a larger jurisdiction.subterrain(geology) The bedrock or rock layer that lies beneath the soil and superficial features of an area.subtilisin(biochemistry) A protease produced by soil bacteria of the genus Bacillus.subtilosinAny of a group of bacteriocins produced by Bacillus subtilissubtilysinAlternative form of subtilisin.subulicorn(zoology) Having subulate antennae.subventionA subsidy; provision of financial or other support.subversionThe act of overthrowing a government or a ruler; dethronement.subvillainA lesser or subsidiary villain.subworkmanA subordinate workman.successionAn act, process, or instance of succeeding:succussionThe act of succussing or shaking; a shake.sudomotionStimulation of the sweat glands.sufflation(archaic) Inflation.suffossion(geology) Internal erosion by liquid percolating through clay, sand, or silt.suggestion(countable) Something suggested (with subsequent adposition being for)sulfadoxinAlternative form of sulfadoxine.sulfakinin(biochemistry) Any of a group of neuropeptides found in crustaceans and insects.sulfaperin(pharmacology) A sulfonamide antibacterial.sulfomucinAny of a class of mucins containing sulfate esters.sulotrobanAn antiplatelet drug.sulphatian(mineralogy) Alternative spelling of sulfatian.sulphationAlternative spelling of sulfation.sulphitian(mineralogy) Alternative spelling of sulfitian.sulphurian(mineralogy) Alternative spelling of sulfurian.sultriecinAn antibiotic obtained from Streptomyces roseiscleroticus.sunbitternAny member of species Eurypyga helias of birds found in the New World tropics, the sole member of the family Eurypygidae.sunepitronA drug designed to treat depression and anxiety.superadmin(computing, informal) superadministratorsuperanion(chemistry) An anion, consisting of a large cluster of atoms, in which the negative charge is spread over many atomssuperationThe act of superating or surmounting.superboson(physics) A condensation of multiple bosons.superbrainAn exceptionally intelligent person; a genius.supergrainA superfood that is a grain.supergreenVery environmentally friendly.superhumanBeyond what is possible for a human being.superoceanAn ocean surrounding a supercontinent.supersedanA sedan car with excellent comfort and performance.supertaxon(taxonomy) A grouping of taxa.supertrainAn exceptionally fast or luxurious train (passenger vehicle).supervixen(colloquial) A very racy or salacious woman.superwoman(informal) A woman who looks after a home and children as well as being employed in a full-time job.superwomenplural of superwomansupinationThe act or state of lying face upward, on one's back.suppletionThe supplying of something lacking.suprahumanHaving powers above and beyond those of a normal human.surcessionA complete end or halt; a surcease.surfaceman(mining) A miner who works in the open air, rather than underground.surfictionA style of fiction that rejects realism and advertises its own fictional status, similar to metafiction, postmodernism or fabulation.surjection(set theory) A function for which every element of the codomain is mapped to by some element of the domain; (formally) Any function f:X→Y for which for every y∈Y, there is at least one x∈X such that f(x)=y.surrection(rare, nonce word) A rising.surreptionThe obtaining of something in a surreptitious manner, or by craft or stealth.susception(archaic) The act of taking, or taking up; reception.suspection(obsolete or nonstandard) suspicionsuspensionThe act of suspending, or the state of being suspended.sustentionsustentationsuturationThe creation of a suture; a stitching together.symmetrianSynonym of symmetrician.symphisianRelating to, or composed of, symphysis.symphonion(music, historical) A combination of pianoforte and harmonium, the precursor of the orchestrion.synaxarion(Christianity) A compilation of hagiographies in the Eastern Orthodox, Oriental Orthodox and Eastern Catholic Churches, corresponding roughly to the martyrology of the Roman Church.synecthran(zoology) An organism that lives in the home of another organism in order to exploit it, and is treated with hostility or indifference.synhedrionAlternative form of synedrion.synthronon(Eastern Orthodoxy) A structure, in the apse, containing the cathedra and seating for priests assisting a bishop.syntocinonA synthetic form of oxytocin.syntopicon(rare) A publication that indexes and compares a number of works in some field.syntrophin(biochemistry) Any of a class of proteins that are associated with dystrophinsyringetin(organic chemistry) An O-methylated flavonol, a type of flavonoid.syringolinAny of a family of macrolactam amino acids secreted by Pseudomonas syringae.syriogeninA particular steroid glycoside found in Asclepias syriaca.