9-letter words containing o, t, s
- annotates — Third-person singular simple present indicative form of annotate.
- anoestrus — a period of sexual inactivity between two periods of oestrus in many mammals
- answer to — a spoken or written reply or response to a question, request, letter, etc.: He sent an answer to my letter promptly.
- ante-post — In gambling, ante-post bets are placed before the day of a particular race or competition.
- antelopes — Plural form of antelope.
- anterooms — Plural form of anteroom.
- antiatoms — Plural form of antiatom.
- anticosti — an island of E Canada, in the Gulf of St Lawrence; part of Quebec. Area: 7881 sq km (3043 sq miles)
- antidotes — Plural form of antidote.
- antigonus — (Gonatus) c319–239 b.c, king of Macedonia 283–239 (son of Demetrius I).
- antimeson — The antiparticle corresponding to a meson.
- antinodes — Plural form of antinode.
- antinoise — sound generated so that it is out of phase with a noise, such as that made by an engine, in order to reduce the noise level by interference
- antiochus — name of thirteen kings of the Seleucid dynasty of Syria
- antipasto — Antipasto is the sort of food that is often served at the beginning of an Italian meal, for example cold meats and vegetables in olive oil.
- antiphons — Plural form of antiphon.
- antipodes — People sometimes refer to Australia and New Zealand as the Antipodes.
- antipopes — Plural form of antipope.
- antishock — designed to reduce the force of impact
- antismoke — preventing smoke
- antisolar — facing in the opposite direction to the sun
- antistory — a story which does not conform to the established conventions of storytelling
- antonescu — Ion. 1882–1946, Romanian general and statesman; appointed prime minister (1940) by King Carol II. He was executed for war crimes
- antoninus — Marcus Aurelius, Marcus Aurelius.
- apatosaur — a large, long-necked, herbivorous dinosaur
- apetalous — (of flowering plants) having no petals
- apologist — An apologist is a person who writes or speaks in defence of a belief, a cause, or a person's life.
- apoptosis — the programmed death of some of an organism's cells as part of its natural growth and development
- apostates — Plural form of apostate.
- apostille — a marginal annotation or note.
- apostolic — Apostolic means belonging or relating to a Christian religious leader, especially the Pope.
- apostolos — a book containing parts of the Epistles and parts of the Acts of the Apostles.
- apothegms — Plural form of apothegm.
- apothesis — (architecture) A place on the south side of the chancel in primitive churches, furnished with shelves, for books, vestments, etc.
- apriorist — a person who believes in apriorism
- arborists — Plural form of arborist.
- archstone — a wedge-shaped stone forming the curved part of an arch
- areostyle — (of columned buildings) having a wide intercolumniation equal to four or more diameters of one of the columns
- argentous — of or containing silver in the monovalent state
- argonauts — Classical Mythology. a member of the band of men who sailed to Colchis with Jason in the ship Argo in search of the Golden Fleece.
- aristotle — a bottle
- armstrong — Edwin Howard. 1890–1954, US electrical engineer; invented the superheterodyne radio receiver and the FM radio
- aromatase — an enzyme that converts testosterone into an oestrogen
- aromatics — Plural form of aromatic.
- aromatise — Alternative spelling of aromatize.
- aroostook — river in N Me., flowing into the St. John River in New Brunswick, Canada: c. 140 mi (225 km)
- arrestors — Plural form of arrestor.
- arrogates — Third-person singular simple present indicative form of arrogate.
- arsonists — Plural form of arsonist.
- art house — a motion-picture theater specializing in the exhibition of art films.