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18-letter words containing a, t, i, v, e

  • cobalt violet deep — a medium to strong purple color.
  • compact video disc — a compact laser disc that plays both pictures and sound
  • comparative method — a body of procedures and criteria used by linguists to determine whether and how two or more languages are related and to reconstruct forms of their hypothetical parent language.
  • concrete universal — a principle that necessarily has universal import but is also concrete by virtue of its arising in historical situations.
  • conductivity water — water that has a conductivity of less than 0.043 × 10–6 S cm–1
  • conservation grade — relating to food produced using traditional methods where possible, and following strict specifications regarding animal feeds and welfare, the use of chemical fertilizers, wildlife conservation, and land management
  • conservative party — The Conservative Party is the main right-of-centre party in Britain.
  • continental divide — the watershed of a continent, esp (often caps.) the principal watershed of North America, formed by the Rocky Mountains
  • contrastive stress — a stress imposed on a word or syllable contrary to its normal accentuation in order to contrast it with an alternative word or syllable or to focus attention on it, as the stress given to the normally unstressed word of in government of the people, by the people, for the people in order to point up the parallel between of, by, and for and to distinguish of from words such as over or against.
  • convenience market — the area of business which involves selling convenience foods
  • conversation chair — an English chair of the 18th century designed to be straddled facing the back of the chair with the elbows resting on the crest rail: an English imitation of the voyeuse.
  • conversation class — a class in which one learns to speak a foreign language
  • conversation piece — something, esp an unusual object, that provokes conversation
  • conversationalists — Plural form of conversationalist.
  • cultural diversity — the cultural variety and cultural differences that exist in the world, a society, or an institution: Dying languages and urbanization are threats to cultural diversity.
  • cultural universal — a cultural pattern extant in every known society.
  • cumulative scoring — a method of scoring in which the score of a partnership is taken as the sum of their scores on all hands played.
  • curvature of field — a monochromatic aberration of a lens or other optical system in which the focal surface is curved, the refracted image of an object oriented perpendicular to the axis of the lens lying on a curved surface rather than in a plane perpendicular to the axis.
  • daytime television — television broadcasts that are shown during the daytime rather than in the evening
  • deductive database — (database)   A combination of a conventional database containing facts, a knowledge base containing rules, and an inference engine which allows the derivation of information implied by the facts and rules. Commonly, the knowledge base is expressed in a subset of first-order logic and either a SLDNF or Datalog inference engine is used.
  • definitive plumage — the plumage of a bird that, once attained, does not change significantly in color or pattern for the rest of the bird's life.
  • dependent variable — a variable in a mathematical equation or statement whose value depends on that taken on by the independent variable
  • descriptive clause — a relative clause that describes or supplements but is not essential in establishing the identity of the antecedent and is usually set off by commas in English. In This year, which has been dry, is bad for crops the clause which has been dry is a nonrestrictive clause.
  • detective sergeant — a police officer who investigates crime and who ranks above a detective constable but below a detective inspector
  • devil's paintbrush — a perennial European hawkweed (Hieracium aurantiacum) with leafless flower stalks bearing a cluster of orange-red heads: now a common weed in N U.S. and Canada
  • digital switchover — the process of changing the method of transmitting television from analogue to digital format
  • digital television — a television broadcasting technology in which signals are transmitted as a sequence of binary numbers.
  • digital video disc — Digital Versatile Disc
  • diphtheria vaccine — a vaccine used to produce immunity against diphtheria
  • diplomatic service — diplomatic corps
  • distracted driving — driving a vehicle while engaging in an activity that has the potential to distract the driver from the task of driving: Bans on cell phone use in cars will help to reduce the dangers of distracted driving.
  • divine inspiration — insight provided by higher power
  • do not give a hoot — If you say that you don't give a hoot or don't care two hoots about something, you are emphasizing that you do not care at all about it.
  • double achievement — a representation of the arms of a husband beside those of his wife such that a difference of rank between them is shown.
  • dragline excavator — a power shovel that operates by being dragged by cables at the end of an arm or jib: used for quarrying, opencast mining, etc
  • driver's education — high-school driving classes
  • elizabeth petrovna — 1709-62; empress of Russia (1741-62): daughter of Peter I
  • enantioselectivity — (chemistry) The selectivity of a reaction towards one of a pair of enantiomers.
  • environment agency — an official agency providing information on environmental issues, esp rivers, flooding and pollution
  • epstein-barr virus — a virus belonging to the herpes family that causes infectious mononucleosis; it is also implicated in the development of Burkitt's lymphoma and Hodgkin's disease
  • equivalent circuit — an arrangement of simple electrical components that is electrically equivalent to a complex circuit and is used to simplify circuit analysis
  • ethical investment — an investment in a company whose activities or products are not considered by the investor to be unethical
  • evapotranspiration — The process by which water is transferred from the land to the atmosphere by evaporation from the soil and other surfaces and by transpiration from plants.
  • evolution strategy — (ES) A kind of evolutionary algorithm where individuals (potential solutions) are encoded by a set of real-valued "object variables" (the individual's "genome"). For each object variable an individual also has a "strategy variable" which determines the degree of mutation to be applied to the corresponding object variable. The strategy variables also mutate, allowing the rate of mutation of the object variables to vary. An ES is characterised by the population size, the number of offspring produced in each generation and whether the new population is selected from parents and offspring or only from the offspring. ES were invented in 1963 by Ingo Rechenberg, Hans-Paul Schwefel at the Technical University of Berlin (TUB) while searching for the optimal shapes of bodies in a flow.
  • executive chairman — the most senior internal position within a company, combining the duties of chairman and chief executive
  • exhaustive testing — (programming)   Executing a program with all possible combinations of inputs or values for program variables.
  • forgive and forget — be reconciled
  • general relativity — the state or fact of being relative.
  • generative grammar — a linguistic theory that attempts to describe the tacit knowledge that a native speaker has of a language by establishing a set of explicit, formalized rules that specify or generate all the possible grammatical sentences of a language, while excluding all unacceptable sentences. Compare transformational grammar.
  • geneva conventions — one of a series of international agreements, first made in Geneva, Switzerland, in 1864, establishing rules for the humane treatment of prisoners of war and of the sick, the wounded, and the dead in battle.
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