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

  • digital television — a television broadcasting technology in which signals are transmitted as a sequence of binary numbers.
  • digital video disc — Digital Versatile Disc
  • 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
  • driver's education — high-school driving classes
  • enantioselectivity — (chemistry) The selectivity of a reaction towards one of a pair of enantiomers.
  • 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
  • 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.
  • exhaustive testing — (programming)   Executing a program with all possible combinations of inputs or values for program variables.
  • 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.
  • give sb their head — If you give someone their head, you allow them to do what they want to do, without trying to advise or stop them.
  • grand traverse bay — an inlet of Lake Michigan on the NW of the Lower Peninsula of Michigan.
  • gravitational lens — a heavy, dense body, as a galaxy, that lies along our line of sight to a more distant object, as a quasar, and whose gravitational field refracts the light of that object, splitting it into multiple images as seen from the earth.
  • gravity escapement — an escapement, used especially in large outdoor clocks, in which the impulse is given to the pendulum by means of a weight falling through a certain distance.
  • gulf saint vincent — a shallow inlet of SE South Australia, to the east of the Yorke Peninsula: salt industry
  • gulliver's travels — a social and political satire (1726) by Jonathan Swift, narrating the voyages of Lemuel Gulliver to four imaginary regions: Lilliput, Brobdingnag, Laputa, and the land of the Houyhnhnms.
  • have a hand in sth — If you have a hand in something such as an event or activity, you are involved in it.
  • have a slate loose — to be eccentric or crazy
  • have got to do sth — You use have got to when you are saying that something is necessary or must happen in the way stated. In informal American English, the 'have' is sometimes omitted.
  • have no hesitation — If you say that you have no hesitation in doing something, you are emphasizing that you will do it immediately or willingly because you are certain that it is the right thing to do.
  • have one's moments — If you say that someone or something has their moments, you are indicating that there are times when they are successful or interesting, but that this does not happen very often.
  • have what it takes — be able or qualified for sth
  • have words with sb — If one person has words with another, or if two or more people have words, they have a serious discussion or argument, especially because one has complained about the other's behaviour.
  • hold a reservation — If a hotel holds a reservation, it keeps a room for someone, and does not give it to someone else.
  • homelands movement — the programme to resettle native Australians on their tribal lands
  • in inverted commas — If you say in inverted commas after a word or phrase, you are indicating that it is inaccurate or unacceptable in some way, or that you are quoting someone else.
  • indentured servant — a person who came to America and was placed under contract to work for another over a period of time, usually seven years, especially during the 17th to 19th centuries. Generally, indentured servants included redemptioners, victims of religious or political persecution, persons kidnapped for the purpose, convicts, and paupers.
  • industrial vehicle — a vehicle designed for use in industry
  • investment account — a bank account in which money is saved long-term to accrue interest
  • investment analyst — a specialist in forecasting the prices of stocks and shares
  • investment casting — a casting process in which an expendable pattern is surrounded by an investment compound and then baked so that the investment is hardened to form a mold and the pattern material may be melted and run off.
  • investment company — a company that invests its funds in other companies and issues its own securities against these investments.
  • investment manager — financial advisor
  • involuntary muscle — muscle: contracts involuntarily
  • leave sth too late — If you leave something too late, you delay doing it so that when you eventually do it, it is useless or ineffective.
  • legislative branch — the branch of government having the power to make laws; the legislature.
  • limestone pavement — a horizontal surface of exposed limestone in which the joints have been enlarged, cutting the surface into roughly rectangular blocks
  • linear perspective — a mathematical system for representing three-dimensional objects and space on a two-dimensional surface by means of intersecting lines that are drawn vertically and horizontally and that radiate from one point (one-point perspective) two points (two-point perspective) or several points on a horizon line as perceived by a viewer imagined in an arbitrarily fixed position.
  • lowell observatory — the astronomical observatory, situated in Flagstaff, Arizona, at which Pluto was discovered in 1930.
  • macroinvertebrates — Plural form of macroinvertebrate.
  • maksutov telescope — a reflecting telescope in which coma and spherical aberration are reduced to a minimum by a combination of a spherical mirror and a meniscus lens placed inside the radius of curvature of the mirror.
  • margaret of valois — ("Queen Margot") 1533–1615, 1st wife of Henry IV of France: queen of Navarre; patron of science and literature (daughter of Henry II of France and Catherine de' Medici).
  • maritime provinces — region in Canada
  • mental reservation — an unexpressed doubt or qualification about a situation, person, etc.
  • microinvertebrates — Plural form of microinvertebrate.
  • microwave spectrum — a spectrum of electromagnetic radiations whose wavelengths fall in the microwave range.
  • move the goalposts — to change the aims of an activity to ensure the desired results
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