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18-letter words containing n, e, t, v

  • conservative party — The Conservative Party is the main right-of-centre party in Britain.
  • constructive proof — (mathematics)   A proof that something exists that provides an example or a method for actually constructing it. For example, for any pair of finite real numbers n < 0 and p > 0, there exists a real number 0 < k < 1 such that f(k) = (1-k)*n + k*p = 0. A constructive proof would proceed by rearranging the above to derive an equation for k: k = 1/(1-n/p) From this and the constraints on n and p, we can show that 0 < k < 1. A few mathematicians actually reject *all* non-constructive arguments as invalid; this means, for instance, that the law of the excluded middle (either P or not-P must hold, whatever P is) has to go; this makes proof by contradiction invalid. See intuitionistic logic. Constructive proofs are popular in theoretical computer science, both because computer scientists are less given to abstraction than mathematicians and because intuitionistic logic turns out to be an appropriate theoretical treatment of the foundations of computer science.
  • 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.
  • cornell university — (body, education)   A US Ivy League University founded in 1868 by businessman Ezra Cornell and respected scholar Andrew Dickson White. Cornell includes thirteen colleges and schools. On the Ithaca campus are the seven undergraduate units and four graduate and professional units. The Medical College and the Graduate School of Medical Sciences are in New York City. Cornell has 13,300 undergraduates and 6,200 graduate and professional students. See also Concurrent ML, Cornell Theory Center, Cornell University Programming Language, CU-SeeMe, ISIS.
  • counter-productive — Something that is counter-productive achieves the opposite result from the one that you want to achieve.
  • counter-revolution — A counter-revolution is a revolution that is intended to reverse the effects of a previous revolution.
  • counterintuitively — In a manner contrary to intuition or common sense.
  • counterrevolutions — Plural form of counterrevolution.
  • 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.
  • daytime television — television broadcasts that are shown during the daytime rather than in the evening
  • 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
  • detective sergeant — a police officer who investigates crime and who ranks above a detective constable but below a detective inspector
  • developing country — a nonindustrialized poor country that is seeking to develop its resources by industrialization
  • development period — a length of time during which a company grows
  • development system — a computer system, including hardware and software, that is specifically designed to aid in the development of software and interfaces
  • 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 television — a television broadcasting technology in which signals are transmitted as a sequence of binary numbers.
  • diphtheria vaccine — a vaccine used to produce immunity against diphtheria
  • 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.
  • distribution curve — the curve or line of a graph in which cumulative frequencies are plotted as ordinates and values of the variate as abscissas.
  • divergent thinking — thinking in an unusual and unstereotyped way, e.g. to generate several possible solutions to a problem
  • 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
  • electrovalent bond — a type of chemical bond in which one atom loses an electron to form a positive ion and the other atom gains the electron to form a negative ion. The resulting ions are held together by electrostatic attraction
  • elizabeth petrovna — 1709-62; empress of Russia (1741-62): daughter of Peter I
  • emergent evolution — the doctrine that, in the course of evolution, some entirely new properties, such as life and consciousness, appear at certain critical points, usually because of an unpredictable rearrangement of the already existing entities
  • employment service — (in the United States) a government department established to collect and supply to the unemployed information about job vacancies and to employers information about availability of prospective workers
  • 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
  • essence of violets — an alcoholic solution derived from violets, used as perfume
  • ethical investment — an investment in a company whose activities or products are not considered by the investor to be unethical
  • euglenoid movement — the expansion and contraction of the cell body of various flagellates
  • 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.
  • every now and then — from time to time; occasionally
  • 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.
  • exclusive brethren — one of the two main divisions of the Plymouth Brethren, which, in contrast to the Open Brethren, restricts its members' contacts with those outside the sect
  • executive chairman — the most senior internal position within a company, combining the duties of chairman and chief executive
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