21-letter words containing c, o, m, s
- accommodation address — an address on letters, etc, to a person or business that does not wish or is not able to receive post at a permanent or actual address
- adjusted gross income — (in U.S. income-tax returns) the total of an individual's wages, salaries, interest, dividends, etc., minus allowable deductions. Abbreviation: AGI.
- administrative county — a principal administrative division in Great Britain, usually not coextensive with traditional county boundaries.
- advanced photo system — a system that enables photographs in different formats to be taken on the same (small) roll of film
- aerodynamic stability — Aerodynamic stability is the way that a moving vehicle reacts to changes in air caused by passing vehicles.
- afro-american english — Black English (def 1).
- afro-american studies — black studies.
- aids dementia complex — a brain disorder in people with AIDS that causes severe irreparable memory loss and disorientation, affecting the ability to function in social or work settings. Abbreviation: ADC.
- airborne command post — any of several converted commercial aircraft equipped with special communications and code gear, intended as flying bunkers for the president, secretary of defense, military commanders, or their designated replacements.
- algorithm description — (language) (ALDES) ["The Algorithm Description Language ALDES", R.G.K. Loos, SIGSAM Bull 14(1):15-39 (Jan 1976)].
- aluminum fluosilicate — a white, water-soluble powder, Al 2 (SiF 6) 3 , used in the manufacture of optical glass and of synthetic sapphires and rubies.
- american saddle horse — one of a breed of horses, raised originally in the U.S., that have high-stepping gaits and are bred to the three-gaited or five-gaited type.
- apothecaries' measure — a system of liquid volume measure used in pharmacy in which 60 minims equal 1 fluid drachm, 8 fluid drachms equal 1 fluid ounce, and 20 fluid ounces equal 1 pint
- appalachian mountains — a mountain system of E North America, extending from Quebec province in Canada to central Alabama in the US: contains rich deposits of anthracite, bitumen, and iron ore. Highest peak: Mount Mitchell, 2038 m (6684 ft)
- articles of agreement — a contract between the captain of a ship and a crew member regarding stipulations of a voyage, signed prior to and upon termination of a voyage.
- as a matter of course — If you do something as a matter of course, you do it as part of your normal work or way of life.
- as cool as a cucumber — If you say that someone is as cool as a cucumber, you are emphasizing that they are very calm and relaxed, especially when you would not expect them to be.
- astronomical distance — the distance from one celestial body to another, measured in astronomical units, light-years, or parsecs.
- astronomical latitude — the angle between the direction of gravity at the observer's position and the plane of the celestial equator
- astronomical triangle — the spherical triangle formed by the great circles connecting a celestial object, the zenith, and the celestial pole.
- astronomical twilight — the period of time during which the sun is 18° below the horizon
- atmospheric inversion — inversion (def 12).
- atmospheric-inversion — an act or instance of inverting.
- atomic disintegration — a process resulting in the change of a radioactive nucleus, either by emission of an alpha, beta, or gamma ray or by fission, and producing a change in the original mass, atomic number, or energy
- axial-flow compressor — a device for compressing a gas by accelerating it tangentially by means of bladed rotors, to increase its kinetic energy, and then diffusing it through static vanes (stators), to increase its pressure
- behind someone's back — without someone's knowledge or consent
- bottlebrush moustache — a short, bristly moustache
- british north america — (formerly) Canada or its constituent regions or provinces that formed part of the British Empire
- butterfly common lisp — A parallel version of Common LISP for the BBN Butterfly computer.
- carlos saavedra lamas — Carlos [kahr-laws] /ˈkɑr lɔs/ (Show IPA), 1878?–1959, Argentine statesman and diplomat: Nobel Peace Prize 1936.
- category merchandiser — A category merchandiser is a person whose job is to maintain stocks, manage displays and promote sales of a certain product category such as footwear.
- charity commissioners — (in Britain) members of a commission constituted to keep a register of charities and control charitable trusts
- charterhouse of parma — a novel (1839) by Stendhal.
- chequebook journalism — Chequebook journalism is the practice of paying people large sums of money for information about crimes or famous people in order to get material for newspaper articles.
- chinese forget-me-not — an eastern Asian plant, Cynoglossum amabile, of the borage family, having lance-shaped leaves and clustered, showy, blue, pink, or white flowers.
- chink in one's armour — a small but fatal weakness
- choledochojejunostomy — (medicine) The surgical formation of an opening between the common bile duct and the jejunum.
- christmas decorations — decorations of different kinds appropriate to Christmas, such as tinsel, candles, images of angels, etc.
- church-rosser theorem — (theory) A property of a reduction system that states that if an expression can be reduced by zero or more reduction steps to either expression M or expression N then there exists some other expression to which both M and N can be reduced. This implies that there is a unique normal form for any expression since M and N cannot be different normal forms because the theorem says they can be reduced to some other expression and normal forms are irreducible by definition. It does not imply that a normal form is reachable, only that if reduction terminates it will reach a unique normal form.
- civil rights movement — campaign for human freedoms
- class-relation method — (programming) A design technique based on the concepts of object-oriented programming and the Entity-Relationship model from the French company Softeam.
- clean someone's clock — an instrument for measuring and recording time, especially by mechanical means, usually with hands or changing numbers to indicate the hour and minute: not designed to be worn or carried about.
- closed-angle glaucoma — angle-closure glaucoma. See under glaucoma.
- clostridium difficile — Clostridium difficile is a bacterium that causes severe diarrhoea. It is commonly found in hospitals. C.diff is also used.
- coinfectious immunity — premunition.
- collins street farmer — a businessman who invests in farms, land, etc
- column address strobe — (hardware) (CAS) A signal sent from a processor (or memory controller) to a dynamic random-access memory (DRAM) (qv) circuit to indicate that the column address lines are valid.
- comfortably-furnished — containing comfortable furniture
- commercial television — television companies which make money by selling advertising
- commercial translator — (language) An English-like pre-COBOL language for business data processing.
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