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19-letter words containing i, a, e

  • air cushion vehicle — ACV (def 2).
  • 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.
  • 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..
  • 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 mikhailovich — 1629–76, tsar of Russia (1645–76); father of Peter the Great
  • 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 data type — (programming)   (Or "sum of products type") In functional programming, new types can be defined, each of which has one or more constructors. Such a type is known as an algebraic data type. E.g. in Haskell we can define a new type, "Tree": data Tree = Empty | Leaf Int | Node Tree Tree with constructors "Empty", "Leaf" and "Node". The constructors can be used much like functions in that they can be (partially) applied to arguments of the appropriate type. For example, the Leaf constructor has the functional type Int -> Tree. A constructor application cannot be reduced (evaluated) like a function application though since it is already in normal form. Functions which operate on algebraic data types can be defined using pattern matching: depth :: Tree -> Int depth Empty = 0 depth (Leaf n) = 1 depth (Node l r) = 1 + max (depth l) (depth r) The most common algebraic data type is the list which has constructors Nil and Cons, written in Haskell using the special syntax "[]" for Nil and infix ":" for Cons. Special cases of algebraic types are product types (only one constructor) and enumeration types (many constructors with no arguments). Algebraic types are one kind of constructed type (i.e. a type formed by combining other types). An algebraic data type may also be an abstract data type (ADT) if it is exported from a module without its constructors. Objects of such a type can only be manipulated using functions defined in the same module as the type itself. In set theory the equivalent of an algebraic data type is a discriminated union - a set whose elements consist of a tag (equivalent to a constructor) and an object of a type corresponding to the tag (equivalent to the constructor arguments).
  • 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.
  • algebraic structure — (mathematics)   Any formal mathematical system consisting of a set of objects and operations on those objects. Examples are Boolean algebra, numerical algebra, set algebra and matrix algebra.
  • alice-in-wonderland — fantastic; irrational
  • 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 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.
  • 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
  • alzheimer's disease — Alzheimer's disease is a condition in which a person's brain gradually stops working properly.
  • 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
  • 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 depression — depression (def 11).
  • 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.
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