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19-letter words containing i, a, n

  • air cushion vehicle — ACV (def 2).
  • air traffic control — Air traffic control is the activity of organizing the routes that aircraft should follow, and telling pilots by radio which routes they should take.
  • air-cushion vehicle — a vehicle that travels just above the surface of land or water on a cushion of air provided by a downward jet from its engines, propellers, etc.
  • air-traffic control — a government service that facilitates the safe and orderly movement of aircraft within and between airports by receiving and processing data from radar and devices that monitor local weather conditions and by maintaining radio contact with pilots.
  • aladdin enterprises — (company)   A small, privately owned, US software consulting and development company, founded in 1986, best known as the original developer of Ghostscript. Address: San Francisco Peninsula, California, USA. Not to be confused with Aladdin Systems, Inc..
  • alcohol consumption — the drinking of alcohol
  • aldridge-brownhills — a town in central England, in Walsall unitary authority, West Midlands: formed by the amalgamation of neighbouring towns in 1966. Pop: 35 525 (2001)
  • alexander technique — a technique for developing awareness of one's posture and movement in order to improve it
  • alexis nikolayevich — (Aleksei Nikolayevich) 1904–18, son of Nicholas II of Russia, heir apparent to the Russian throne: executed in the Russian Bolshevik Revolution.
  • algebraic extension — a field containing a given field such that every element in the first field is algebraic over the given field.
  • algebraic operation — any of the mathematical operations of addition, subtraction, multiplication, division, raising to a power, or extraction of a root.
  • algorithmic trading — trading on international stock exchanges using computers that have been programmed to buy and sell shares according to fixed rules
  • alice-in-wonderland — fantastic; irrational
  • all in a day's work — If you say that a task is all in a day's work for someone, you mean that they do not mind doing it although it may be difficult, because it is part of their job or because they often do it.
  • all-points bulletin — An all-points bulletin is a message sent by a police force to all its officers. The abbreviation APB is also used.
  • all-risks insurance — insurance that covers all risks to property except any types that are specifically excluded or limited in the policy
  • all-terrain vehicle — a vehicle with treads or wheels designed to travel on rough ground
  • allegheny mountains — a mountain range in Pennsylvania, Maryland, Virginia, and West Virginia: part of the Appalachian system; rising from 600 m (2000 ft) to over 1440 m (4800 ft)
  • alpha canis majoris — Sirius
  • alpha canis minoris — Procyon
  • alpha ursae minoris — Polaris
  • alphabetic language — (human language)   A written human language in which symbols reflect the pronunciation of the words. Examples are English, Greek, Russian, Thai, Arabic and Hebrew. Alphabetic languages contrast with ideographic languages.
  • altazimuth mounting — a telescope mounting that allows motion of the telescope about a vertical axis (in azimuth) and a horizontal axis (in altitude)
  • alternating current — An alternating current is an electric current that continually changes direction as it flows. The abbreviation AC is also used.
  • alternating voltage — a voltage that reverses direction in regular cycles.
  • alternative history — a genre of fiction in which the author speculates on how the course of history might have been altered if a particular historical event had had a different outcome
  • alternative pathway — the activation of complement by contact with polysaccharides on bacteria, protozoa, or yeast cells: a nonspecific immune response. Compare classical pathway.
  • alternative society — a society or social group that espouses values different from those of the established social order.
  • aluminium hydroxide — a white crystalline powder derived from bauxite and used in the manufacture of glass and ceramics, aluminium and its salts, and in dyeing. Formula: Al(OH)3 or Al2O3.3H2O
  • ambient temperature — Ambient temperature is the temperature of the air surrounding a component.
  • ambulance insurance — Ambulance insurance is insurance cover that covers the cost of an emergency ambulance if one is needed.
  • american black bear — a bear, Euarctos (or Ursus) americanus, inhabiting forests of North America. It is smaller and less ferocious than the brown bear
  • american book award — any of several awards given annually since 1980 to an author whose book is judged the best in its category: administered by the Association of American Publishers. Abbreviation: ABA, A.B.A.
  • american crab apple — a twiggy, stiff-branched tree, Malus coronaria, of southern central North America, having small fruit and rose-colored flowers that change to white.
  • american directoire — a style of American furniture making and related crafts from c1805 to c1815, corresponding to the French Directoire and English Regency styles.
  • american revolution — a sequence of actions by American colonists from 1763 to 1775 protesting British domination and culminating in the Revolutionary War
  • american smoke tree — a small tree, Cotinus obovatus, of the cashew family, of the central southern U.S., having yellowish flowers and clusters of fleshy fruit with silky plumes.
  • american wire gauge — American wire gauge is a measure of wire thickness.
  • amino acid sequence — the unique sequence of amino acids that characterizes a given protein
  • ammonium bifluoride — a white, crystalline, water-soluble, poisonous solid, NH 4 HF 2 , used chiefly for cleaning and sterilizing brewing and dairy equipment.
  • ammonium binoxalate — a colorless, crystalline, water-soluble, poisonous solid, C 2 H 5 NO 4 ⋅H 2 O, used chiefly for removing ink stains from fabrics.
  • anaerobic digestion — the conversion of biodegradable waste matter into compost in the absence of oxygen
  • analytic philosophy — a 20th-cent. philosophic movement characterized by its method of analyzing concepts and statements in the light of common experience and ordinary language so as to eliminate confusions of thought and resolve many traditional philosophical problems
  • analytic psychology — the system of psychology developed by C. G. Jung as a variant of psychoanalysis
  • analytical geometry — the branch of geometry that uses algebraic notation and analysis to locate a geometric point in terms of a coordinate system; coordinate geometry
  • anarcho-syndicalism — syndicalism.
  • anarcho-syndicalist — syndicalism.
  • anatomical snuffbox — the triangular depression on the back of the hand between the thumb and the index finger
  • ancillary equipment — Ancillary equipment is machines and other technical things which are used with the main items of equipment to create a complete system.
  • angioneurotic edema — swelling that occurs just beneath the surface of the skin or mucous membranes.
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