21-letter words containing o, m, n, i, s, c
- 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.
- 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.
- 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.
- 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
- behind someone's back — without someone's knowledge or consent
- 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.
- 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
- 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
- christmas decorations — decorations of different kinds appropriate to Christmas, such as tinsel, candles, images of angels, etc.
- 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.
- coinfectious immunity — premunition.
- collins street farmer — a businessman who invests in farms, land, etc
- 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.
- commission of inquiry — (in Britain) a group that is set up to investigate something
- committal proceedings — a preliminary hearing in a magistrates' court to decide if there is a case to answer
- committing magistrate — a magistrate who decides if there is enough evidence for a case to proceed
- communication science — the study of ways in which human beings communicate, including speech, gesture, telecommunication systems, publishing and broadcasting media, etc
- communications server — (operating system) IBM's rebranding of ACF.
- community association — (in Britain) an organization of people and groups working for the common good of a neighbourhood, usually operating under a written constitution registered with the Charity Commissioners
- comparative statement — a financial statement with figures arranged in two or more parallel columns, each column representing a fiscal year or other period, used to compare performance between periods.
- comparison microscope — a microscope having two objective lenses and using a system of prisms to form in one eyepiece adjacent images of two different objects.
- compensation neurosis — an unconscious attempt to retain physical or psychological symptoms of illness when some advantage may be obtained (distinguished from malingering).
- competitive exclusion — the dominance of one species over another when both are competing for the same resources, etc
- completing the square — a method, usually of solving quadratic equations, by which a quadratic expression, as x 2 − 4 x + 3, is written as the sum or difference of a perfect square and a constant, x 2 − 4 x + 4 + 3 − 4 = (x − 2) 2 − 1, by addition and subtraction of appropriate constant terms.
- componential analysis — the analysis of a set of related linguistic items, especially word meanings, into combinations of features in terms of which each item may be compared with every other, as in the analysis of man into the semantic features “male,” “mature,” and “human,” woman into “female,” “mature,” and “human,” girl into “female,” “immature,” and “human,” and bull into “male,” “mature,” and “bovine.”.
- composition of forces — the combination, by vector algebra, of two or more forces into a single equivalent force (the resultant)
- computer aided design — (application) (CAD) The part of CAE concerning the drawing or physical layout steps of engineering design. Often found in the phrase "CAD/CAM" for ".. manufacturing".
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