17-letter words containing a, c, t, o, s
- bureau of customs — former name of the United States Customs Service.
- cache consistency — cache coherency
- caesarean section — A Caesarean or a Caesarean section is an operation in which a baby is lifted out of a woman's womb through an opening cut in her abdomen.
- café-au-lait spot — a brown patch on the skin that can occur normally in small numbers or in neurofibromatosis, when they are more numerous
- calcium phosphate — the insoluble nonacid calcium salt of orthophosphoric acid (phosphoric(V) acid): it occurs in bones and is the main constituent of bone ash. Formula: Ca3(PO4)2
- calf's-foot jelly — a jelly made from the stock of boiled calves' feet and flavourings, formerly often served to invalids
- cannot choose but — to be obliged to
- carbon offsetting — a program in which a company, country, etc., reduces or offsets its carbon emissions through the funding of activities and projects that improve the environment: Carbon offsetting does not always have a quantifiable impact on the planet.
- cardio striptease — a form of keep-fit exercise in which people move their bodies in the manner of striptease artists
- cardiorespiratory — of, relating to, or affecting the heart and respiratory system.
- cariboo mountains — a mountain range in SW Canada, in SE British Columbia. Highest peak: Mount Sir Wilfrid Laurier, 3520 m (11 549 ft)
- carlos de austria — Don [dawn] /dɔn/ (Show IPA), 1545–68, eldest son of Philip II of Spain: died during imprisonment for conspiracy against his father.
- cartesian product — the set of all ordered pairs of members of two given sets. The product A × B is the set of all pairs <a, b> where a is a member of A and b is a member of B
- case-study method — Also called case-study method [keys-stuhd-ee] /ˈkeɪsˈstʌd i/ (Show IPA). the teaching or elucidation of a subject or issue through analysis and discussion of actual cases, as in business education.
- cassette recorder — A cassette recorder is a machine that is used for recording and listening to cassettes.
- cast/run your eye — If you cast your eye or run your eye over something, you look at it or read it quickly.
- castor and pollux — the twin sons of Leda: Pollux was fathered by Zeus, Castor by the mortal Tyndareus. After Castor's death, Pollux spent half his days with his half-brother in Hades and half with the gods in Olympus
- cat-o'-nine-tails — a rope whip consisting of nine knotted thongs, used formerly to flog prisoners
- catastrophization — The act or process of catastrophizing.
- catch one's death — to contract a severe cold
- catcher resonator — See under Klystron.
- catholic epistles — the epistles of James, I and II Peter, I John, and Jude, which were addressed to the universal Church rather than to an individual or a particular church
- causality paradox — the hypothetical cause-and-effect of time travel and making changes in the past that would affect current actions.
- celestial equator — the great circle lying on the celestial sphere, the plane of which is perpendicular to the line joining the north and south celestial poles
- celestial horizon — the line or circle that forms the apparent boundary between earth and sky.
- cellulose acetate — nonflammable material made by acetylating cellulose: used in the manufacture of film, dopes, lacquers, and artificial fibres
- cellulose nitrate — a compound made by treating cellulose with nitric and sulphuric acids, used in plastics, lacquers, and explosives: a nitrogen-containing ester of cellulose
- centi-call second — (spelling) No, it's centum call second.
- chacun a son gout — each to his own taste
- chamber orchestra — A chamber orchestra is a small orchestra which plays classical music.
- change one's tune — to alter one's attitude or tone of speech
- characterisations — Plural form of characterisation.
- characterizations — portrayal; description: the actor's characterization of a politician.
- charles townshend — Charles, 1725–67, English politician, chancellor of the exchequer for whom the Townshend Acts are named.
- chart of accounts — A chart of accounts is a list of all the accounts used in a business to classify transactions or report balances.
- charter of rights — a section of the Canadian Constitution containing a statement of the basic rights of citizens of Canada.
- chartered society — a society that has an official charter
- checkable deposit — a checking account
- chemotherapeutics — chemotherapy.
- china grass cloth — grass cloth.
- chinese artichoke — a hairy plant, Stachys affinis, of China and Japan, having numerous small, white, edible tubers.
- choanoflagellates — Plural form of choanoflagellate.
- chocolate biscuit — a biscuit covered with chocolate
- chocolate soldier — a person who mistakenly believes that he or she is very powerful, important, or impressive
- chromolithographs — Plural form of chromolithograph.
- chugach mountains — a coastal mountain range in S Alaska, extending W from the St. Elias Mountains. Highest peak, Mount Marcus Baker, 13,176 feet (4016 meters).
- circle the wagons — to take defensive action; prepare for an attack: from arranging a wagon train in a circular formation
- cistern barometer — a mercury barometer in which the lower mercury surface has a greater area than the upper.
- clang association — the association made between two words because they sound similar; for example cling and ring
- class distinction — a characteristic that is observed to differ based on social class