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19-letter words containing o, a, t

  • agitated depression — severe depression accompanied by extreme anxiety and agitation
  • aglaophon of thasos — flourished 6th to 5th centuries b.c, Greek painter: father and teacher of Polygnotus.
  • agricultural worker — a person who is employed in agriculture, usually a manual worker
  • 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-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.
  • alcohol consumption — the drinking of alcohol
  • 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
  • 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.
  • 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)
  • alphonse and gaston — marked by a ritualistic courtliness in which two often competing participants graciously but stubbornly defer to each other: a kind of Alphonse and Gaston act in which each man insisted the other go through the doorway first.
  • altazimuth mounting — a telescope mounting that allows motion of the telescope about a vertical axis (in azimuth) and a horizontal axis (in altitude)
  • 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 society — a society or social group that espouses values different from those of the established social order.
  • ambassador-at-large — an ambassador with special duties who may be sent to more than one government
  • 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.
  • 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.
  • amount of substance — a measure of the number of entities (atoms, molecules, ions, electrons, etc) present in a substance, expressed in moles
  • 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-syndicalist — syndicalism.
  • anatomical snuffbox — the triangular depression on the back of the hand between the thumb and the index finger
  • androuet du cerceau — Androuet [ahn-droo-e] /ɑ̃ druˈɛ/ (Show IPA), Androuet du Cerceau.
  • angioneurotic edema — swelling that occurs just beneath the surface of the skin or mucous membranes.
  • angle of reflection — the angle that a beam of reflected radiation makes with the normal to a surface at the point of reflection
  • angle of refraction — the angle that a refracted beam of radiation makes with the normal to the surface between two media at the point of refraction
  • anno urbis conditae — in a (specified) year from the founding of the city: the ancient Romans reckoned dates from Rome's founding, c. 753 b.c.
  • anterograde amnesia — amnesia caused by brain damage in which the memory loss relates to events occurring after the damage
  • anthropic principle — the cosmological theory that the presence of life in the universe limits the ways in which the very early universe could have evolved
  • anthropocentrically — regarding the human being as the central fact of the universe.
  • anthropomorphically — ascribing human form or attributes to a being or thing not human, especially to a deity.
  • anti-comintern pact — a pact formed in 1936, based on agreements between Germany and Japan to oppose communism and the Third International: Italy and Spain subsequently became signatories.
  • anti-prohibitionist — a person who favors or advocates prohibition.
  • anti-vivisectionist — a person who opposes vivisection.
  • anticholinesterases — Plural form of anticholinesterase.
  • anticipatory breach — a declaration by one party to a contract that it does not intend to fulfil its obligations to the second party, who can then accept this declaration and choose not to be bound by the contract
  • anticompetitiveness — The quality of being anticompetitive.
  • antimony trisulfide — a black or orange-red crystalline compound, Sb2S3, used as a pigment, in pyrotechnics and matches, for fireproofing fabrics and paper, etc.
  • antoine louis barye — Antoine Louis [ahn-twan lwee] /ɑ̃ˈtwan lwi/ (Show IPA), 1795–1875, French sculptor and painter.
  • appetitive behavior — activity that increases the likelihood of satisfying a specific need, as restless searching for food by a hungry predator (distinguished from consummatory behavior).
  • application program — a computer program that is written and designed for a specific need or purpose
  • application testing — system testing
  • appointment viewing — the practice of setting time aside to watch particular television programmes
  • appointments bureau — an office responsible for filling appointments
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