10-letter words containing o, r, s, i
- alienators — Plural form of alienator.
- allegories — Plural form of allegory.
- allegorist — a person who writes allegories
- alligators — either of two broad-snouted crocodilians of the genus Alligator, of the southeastern U.S. and eastern China.
- allomerism — similarity of crystalline structure in substances of different chemical composition
- allosteric — of, relating to, or designating a function of an enzyme in which the structure and activity of the enzyme are modified by the binding of a metabolic molecule
- altostrati — Plural form of altostratus.
- amatorious — amatorial
- americanos — Plural form of americano.
- aminosugar — a monosaccharide with an amino or substituted amino group in place of a nonglycosidic hydroxyl group.
- amortising — Present participle of amortise.
- anachorism — a geographical misplacement; something located in an incongruous position
- anaerobies — (biology) anaerobes.
- anchorites — Plural form of anchorite.
- angiograms — Plural form of angiogram.
- angiosperm — any seed-bearing plant of the phylum Angiospermophyta (division Angiospermae in traditional systems), in which the ovules are enclosed in an ovary, which develops into the fruit after fertilization; any flowering plant
- anhidrosis — the absence of sweating
- anhydrosis — the deficiency or absence of perspiration; adiaphoresis.
- anisocoria — inequality in the size of the pupils.
- anisomeric — (of a chemical compound) lacking isomers
- anisotropy — Physics. of unequal physical properties along different axes. Compare isotropic (def 1).
- anorectics — Plural form of anorectic.
- anorgasmia — inability to experience sexual orgasm.
- anseriform — (ornithology) Of or pertaining to birds of the family Anseriformes including ducks, geese, swans, and screamers.
- anti-story — a narrative of short-story length that makes no effort to follow a plot and ignores structural conventions, character motivations, and the like.
- antiheroes — Plural form of antihero.
- antismoker — a person opposed to tobacco smoking
- aphoristic — of, relating to, or resembling an aphorism
- aphrodisia — the desire for sexual intimacy
- apishamore — A saddle-blanket, a saddle blanket.
- apologiser — Agent noun of apologise; one who apologises.
- appointers — Plural form of appointer.
- appointors — Plural form of appointor.
- apportions — Third-person singular simple present indicative form of apportion.
- aquafortis — concentrated nitric acid, used for etching
- aquaporins — Plural form of aquaporin.
- aquiferous — conveying, containing or yielding water
- arachnoids — Plural form of arachnoid.
- arc cosine — Trigonometry. the angle, measured in radians, that has a cosine equal to a given number. Symbol: cos −1. Abbreviation: arc cos;
- archbishop — In the Roman Catholic, Orthodox, and Anglican Churches, an archbishop is a bishop of the highest rank, who is in charge of all the bishops and priests in a particular country or region.
- archivolts — Plural form of archivolt.
- arcosolium — (in Roman catacombs) an arched recess for a sarcophagus.
- areligious — unconcerned with or indifferent to religious matters.
- ariovistus — flourished c71–58 b.c, Germanic leader of the Suevi.
- aristocrat — An aristocrat is someone whose family has a high social rank, especially someone who has a title.
- aristology — the art of eating
- aristotype — a process of photographic printing in which paper coated with silver chloride in gelatin is used.
- armadillos — Plural form of armadillo.
- armigerous — of, having, or entitled to have a coat of arms
- arrowsmith — a novel (1925) by Sinclair Lewis.