19-letter words containing e, t, i
- 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-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)
- 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.
- 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.
- ambient temperature — Ambient temperature is the temperature of the air surrounding a component.
- 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.
- anaerobic digestion — the conversion of biodegradable waste matter into compost in the absence of oxygen
- 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
- 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.
- 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.
- annual limit values — Annual limit values are the maximum amounts of emissions which are allowed each year.
- antarctic peninsula — the largest peninsula of Antarctica, between the Weddell Sea and the Pacific: consists of Graham Land in the north and the Palmer Peninsula in the south
- 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.
- 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-ecclesiastical — of or relating to the church or the clergy; churchly; clerical; not secular.
- anti-fundamentalism — (sometimes initial capital letter) a religious movement characterized by a strict belief in the literal interpretation of religious texts, especially within American Protestantism and Islam.
- anti-fundamentalist — (sometimes initial capital letter) a religious movement characterized by a strict belief in the literal interpretation of religious texts, especially within American Protestantism and Islam.
- 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.
- antimissile missile — a ballistic missile for seeking and destroying missiles in flight.
- 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.
- appetite depressant — a product which reduces one's appetite
- 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 testing — system testing
- applied linguistics — linguistic theory as applied to such fields as lexicography, psychology, the teaching of reading, the creation of orthographies, and especially language teaching.
- appointment viewing — the practice of setting time aside to watch particular television programmes
- appointments bureau — an office responsible for filling appointments
- appraisal interview — an interview by the manager of an employee who is being appraised
- aqueduct of sylvius — a canal in the midbrain, connecting the third and fourth ventricles of the brain.
- arbitration service — a service which provides an impartial referee to settle disputes
- arecibo observatory — an observatory in Puerto Rico at which the world's largest dish radio telescope (diameter 305 m) is situated. It is operated by the National Astronomy and Ionosphere Center
- aristotle's lantern — a complex arrangement of muscles and calcareous teeth and plates forming an eversible organ in most echinoids, functioning in mastication.
- arkwright furniture — late medieval English furniture of simple construction.
- armed response unit — (in Britain) a unit of police officers who are trained to use firearms in situations where unarmed police officers would be in danger