12-letter words containing a, s
- arthroplasty — surgical repair of a diseased joint
- arthroscopes — Plural form of arthroscope.
- arthroscopic — the use of an arthroscope to diagnose an injury to or disease of a joint or to perform minor surgery on a joint.
- arthrospores — an isolated vegetative cell that has passed into a resting state, occurring in bacteria and not regarded as a true spore.
- arthrotomies — Plural form of arthrotomy.
- arthur evans — Sir Arthur John, 1851–1941, English archaeologist.
- articulators — Plural form of articulator.
- artillerists — Plural form of artillerist.
- artiodactyls — Plural form of artiodactyl.
- artistically — conforming to the standards of art; satisfying aesthetic requirements: artistic productions.
- arts council — an organization that provides funding for a variety of arts activities
- arts student — a person studying an arts subject
- artsy-fartsy — pretentiously artistic, sophisticated, etc.
- artzybasheff — Boris Mikhailovich [bawr-is mi-kahy-luh-vich,, bor-;; Russian buh-ryees myi-khahy-luh-vyich] /ˈbɔr ɪs mɪˈkaɪ lə vɪtʃ,, ˈbɒr-;; Russian bʌˈryis myɪˈxaɪ lə vyɪtʃ/ (Show IPA), 1899–1965, U.S. illustrator and writer, born in Russia.
- as per usual — as usual
- asbestos mat — a heat-proof mat
- ascensionist — a person who has completed a mountain ascent, esp a notable one
- ascertaining — to find out definitely; learn with certainty or assurance; determine: to ascertain the facts.
- aschoff body — any of the spindleshaped nodules found in heart tissue and associated with the myocarditis of rheumatic fever.
- asclepiadean — of or relating to a type of classical verse line consisting of a spondee, two or three choriambs, and an iamb
- ascomycetous — belonging or pertaining to the Ascomycota.
- ash-coloured — silver-grey in colour
- ashurbanipal — died ?626 bc, king of Assyria (?668–?626): son of Esarhaddon. He built the magnificent palace and library at Nineveh
- asking price — The asking price of something is the price which the person selling it says that they want for it, although they may accept less.
- asparaginase — an enzyme used in treating leukaemia
- aspect ratio — the ratio of width to height of the picture on a television or cinema screen
- asphalt rock — a rock formation, usually of limestone or sandstone, containing large amounts of bitumens.
- asphyxiating — to produce asphyxia in.
- asphyxiation — Asphyxiation is a lack of oxygen in blood, which causes suffocation.
- aspirational — If you describe someone as aspirational, you mean that they have strong hopes of moving to a higher social status.
- aspiringness — the condition of being aspiring
- ass-backward — the wrong way round; back to front; in the opposite order to what is considered normal
- assassin bug — any long-legged predatory, often blood-sucking, insect of the heteropterous family Reduviidae
- assassinated — Simple past tense and past participle of assassinate.
- assassinates — Third-person singular simple present indicative form of assassinate.
- assassinator — a person who assassinates
- assault boat — a portable boat used for landing troops on beaches and for crossing rivers.
- assaultively — in an assaultive manner
- assay groove — (in silverwork) a furrow left in a piece by the digging out of metal for assay.
- assay office — an organization that assays and monitors the purity of precious metals in a particular country
- assbackwards — in an order or way reverse from the usual: You've sewn the sleeve on assbackwards.
- assemblagist — a creative person or artist who is skilled in putting together works of art based on assemblage
- assentaneous — having a tendency to agree, comply or acquiesce
- assertations — Plural form of assertation.
- assessorship — the occupation, post or duties of a person who assesses, advises, or estimates
- asseverating — Present participle of asseverate.
- asseveration — the act of asseverating.
- asseverative — characterized by or relating to solemn declaration or affirmation
- assibilation — (linguistics) A sound change resulting in a sibilant consonant, commonly the final phase of palatalization.
- assignations — Plural form of assignation.