Other Ending Letters

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obdormitionThe sensation of numbness that occurs in a limb when it falls asleep due to pressure on a nerve.obfirmation(obsolete, rare) stubbornness; obduracy.obfuscation(countable) A single instance of intentionally obscuring the meaning of something to make it more difficult to grasp.objurgation(uncommon) A strong rebuke or scolding.oblatration(obsolete) The act of barking at someone or something; (figuratively) the act of ranting at someone or something; an instance of these.oblectation(obsolete) The act of pleasing highly, or state of being greatly pleased; delight.obliquationThe act of becoming oblique; a turning to one side; obliquity.obliviationTotal removal or erasure.obluctation(obsolete) opposition; resistanceobscurationThe state of being obscured.obsecrationAn earnest supplication made in the name of GodobservationThe act of observing, and the fact of being observed (see observance)obsignationThe act of sealing or ratifying.obstinationstubbornnessobstipationsevere constipation caused by intestinal obstruction.obstrictionThe state of being constrained, bound, obliged, or obligated.obstructionThe act of obstructing, or state of being obstructed.obtestation(archaic) The act of obtesting; supplication; protestation.obtundation(medicine) Decreased level of alertness or consciousnessobtusifolin(organic chemistry) The anthraquinone derivative 2,8-dihydroxy-1-methoxy-3-methylanthracene-9,10-dione present in Senna obtusifoliaobumbration(archaic) The act of darkening or obscuring; obnubilation; obscuration.occaecation(obsolete) An act of going blind.occultationThe state of being occult (“hidden, undetected”).ochrobactinA siderophore produced by bacteria of the genus OchrobactrumocriplasminA recombinant protease, having activity against fibronectin and laminin, which is used in the treatment of vitreomacular adhesionoctactinianAny anthozoan coral of the former subclass Octactiniaoctadecagon(geometry, rare) A polygon with 18 sides and 18 vertices.octaviation(music) The repetition of a chord an octave higher or lower than the original.oculomotionThe faculty of movement of the eye.odorizationThe addition of an odorant to a gas (so that leaks can be more easily detected)oesophageanAlternative form of esophagean.oestruation(biology) The period of heat, or eagerness to mate, in animals.offendotron(neologism, slang, derogatory) A person who makes it their business to take offense wherever possible.officiationThe act of officiating.offuscationObsolete form of obfuscation.olefination(organic chemistry) Any reaction that yields an olefinoleovitaminA vitamin administered in the form of an edible oil.oligoglucan(biochemistry) An oligomer of glucoseoligoglycan(biochemistry) An oligomeric form of glycanoligolignan(biochemistry) Any oligomer composed of lignan monomersoligomannan(biochemistry) An oligomeric form of mannanoligopectinAn oligomeric form of pectinolitoriusinA particular steroid glycoside.ombudswomanA female ombudsman.omohyoideanRelating to the omohyoid.oncomodulin(biochemistry) A calcium-binding parvalbumin found in macrophagesoncoprotein(genetics, oncology, biochemistry) A protein that is coded for by an oncogene.oncostationMisspelling of oncostatin.ondansetron(pharmacology) A carbazole derivative (trademark Zofran), C₁₈H₁₉N₃O, that is a serotonin receptor antagonist administered by injection and by mouth to relieve nausea and vomiting, especially during cancer therapy.onjisaponinAny of a group of saponins, from the root of Polygala tenuifolia, used in Chinese medicineonomasticonA book, list, or vocabulary of names, especially of people.onygenalean(mycology) Of or pertaining to the fungal order Onygenales.onymizationSynonym of proprialization.opalisationAlternative form of opalization.opalizationThe process of making something opalescent, or of converting wood etc into opal.ophioleucinAny brittle star of the subfamily Ophioleucinaeopistoporin(biochemistry) Any of a group of peptides that form pores in cell membranesopitulation(obsolete) The act of helping or aiding; assistance.oralisation(chiefly UK) The act or an act of oralising; the act or an act of turning something written into something oral.oralization(chiefly US) The act or an act of oralizing; the act or an act of turning something written into something oral.orchestrion(music) A mechanical multiple musical instrument designed to sound like an orchestra or band.ordnanceman(military) A person responsible for storing, maintaining, and handling ordnance.organoboron(organic chemistry) Describing any organic compound containing a carbon to boron bondorganoxenon(organic chemistry) Describing any organic compound containing a carbon to xenon bond.orgasmatron(science fiction) A hypothetical device capable of inducing orgasm.orientation(countable) The determination of the relative position of something or someone.origination(uncountable) The process of bringing something into existence.oritavancinA glycopeptide antibiotic being developed for the treatment of serious Gram-positive infections.ornipressinA vasoconstrictor, haemostatic and renal agent.orthocousinAny of two or more cousins who are the children of siblings of identical gender, i.e. children of brothers or of sisters.orthodentin(dentistry) A form of dentin, composed of straight tubes, in the teeth of mammals.orthodoxianOf or pertaining to Orthodox beliefs.orthohedron(mathematics) A figure, somewhat like a cube but with two square faces and four rectangular facesorthopteran(entomology) Any of many insects of the order Orthoptera.orthopteronAlternative form of orthopteran.orthosiphonAny herbaceous shrub of the genus Orthosiphon.orthosporin(organic chemistry) The isochromenone 6,8-dihydroxy-3-[(2S)-2-hydroxypropyl]isochromen-1-one present in some fungioscillationthe act of oscillating or the state of being oscillatedostentationAmbitious display; vain show; display intended to excite admiration or applause.osteocalcin(organic chemistry, biochemistry) A protein, found in bone and dentin and manufactured by osteoblasts, that plays a role in mineralization and calcium ion homeostasis.osteoclacinMisspelling of osteocalcin.osteoglycin(biochemistry) A proteoglycan that has osteoinductive activityosteonectin(biochemistry) A protein that binds to hydroxyapatite to facilitate the mineralisation of collagen in bones.osteopontin(biochemistry) A sialopontin found in bone tissueosteostatin(biochemistry) A protein fragment that modulates osteogenesisostreolysin(biochemistry) A cytolytic protein present in the oyster mushroom Pleurotus ostreatusosturducken(cooking) An ostrich stuffed with a turducken; that is, a boned chicken stuffed with some sort of breadcrumb or sausage stuffing, inside a boned duck, inside a boned turkey, inside a boned ostrich.otocadherinA particular cadherin, cadherin 23, found in the cochlea and other tissues.otocephalanRelating to fish of the clade Otocephala.otopathogenAny material that causes an otopathy or otitisotospiralin(biochemistry) A protein produced by fibrocytes of the inner earoutcampaign(transitive) To campaign better than (as for a political position).outdoorsmanA man who spends time in outdoor pursuits or sports.outpositionTo obtain a better position than.outquestion(transitive) To surpass in questioning.outrotationAn outward rotation (typically of a joint)outthreaten(transitive) To threaten more than; to surpass in threats.ovalisationAlternative form of ovalization.ovalizationThe process of ovalizing; the process of changing to an oval shape.overblacken(transitive) To blacken excessively.overbroaden(transitive) To make too broad.overburthenArchaic form of overburden.overcautionexcessive cautionoverconcernexcessive concernoverdrunkenExcessively drunken.overexplain(transitive) To explain at unnecessary length or in too much detail.overflatten(transitive) To flatten too much.overflexionExcessive flexionoverlighten(ambitransitive) To make or become too light.overmoistenTo add too much liquid when moistening; to make overly moist.oversharpen(transitive, chiefly photography) To sharpen too much.overshorten(transitive) To shorten too much; make excessively or inappropriately short.oversteepen(transitive) To make excessively steep.oversweeten(transitive) To make too sweet.overswollenExcessively swollen or puffed up.overtensionExcessive tension.overthicken(transitive) To thicken to an excessive degree.overtighten(transitive) To tighten too much.overwrittenpast participle of overwriteovinizationSynonym of clavelization (“inoculation of an animal against sheeppox”).oviposition(zoology or paraphilia) The process or instance of ovipositing, laying eggs.oviraptoranAny of several birdlike dinosaurs of the family †Oviraptoridae.ovoglobulinAny of a class of proteins found in egg white.ovopositionMisspelling of oviposition.ovovitellin(biochemistry) A form of casein found in egg yolkoxaliplatin(pharmacology) A particular drug used in chemotherapy.oxamidation(organic chemistry) Any reaction that forms an oxamideoxidisationNon-Oxford British English standard spelling of oxidization.oxidizationSynonym of oxidation.oxycarboxinA particular fungicide.oxyfluorfenThe herbicide 2-chloro-α,α,α-trifluoro-p-tolyl 3-ethoxy-4-nitrophenyl ether.oxygenationThe process of reacting or treating something with oxygen.oxyhydrogenOf, or using a mixture of, hydrogen and oxygen.oysterwomanA woman who sells oysters.ozonisationAlternative spelling of ozonization.ozonizationReaction or treatment with ozone.