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18-letter words containing d, o, t, y

  • protein deficiency — a lack or insuffiency of protein
  • provably difficult — The set or property of problems for which it can be proven that no polynomial-time algorithm exists, only exponential-time algorithms.
  • pseudo-symptomatic — pertaining to a symptom or symptoms.
  • put your foot down — If someone puts their foot down, they use their authority in order to stop something happening.
  • quarry-tiled floor — a floor covered with square or diamond-shaped unglazed floor tiles
  • racially motivated — motivated by (the hate or prejudice of) someone's race
  • radius of gyration — the distance from an axis at which the mass of a body may be assumed to be concentrated and at which the moment of inertia will be equal to the moment of inertia of the actual mass about the axis, equal to the square root of the quotient of the moment of inertia and the mass.
  • random walk theory — the theory that the future movement of share prices does not reflect past movements and therefore will not follow a discernible pattern
  • rapid eye movement — rapidly shifting, continuous movements of the eyes beneath closed lids during the stage of sleep characterized by dreaming.
  • reduction strategy — (theory)   An algorithm for deciding which redex(es) to reduce next. Different strategies have different termination properties in the presence of recursive functions or values. See string reduction, normal order reduction, applicative order reduction, parallel reduction
  • reflection density — a measure of the extent to which a surface reflects light or other electromagnetic radiation, equal to the logarithm to base ten of the reciprocal of the reflectance
  • refrigerated lorry — a lorry which is chilled in the back as for storing food
  • registered company — a company which has officially registered its business
  • restoration comedy — English comedy of the period of the Restoration, stressing manners and social satire.
  • rhondda cynon taff — a county borough in S Wales, created from part of Mid Glamorgan in 1996. Pop: 231 600 (2003 est). Area: 558 sq km (215 sq miles)
  • rhyming dictionary — a specialist dictionary organized by the final sounds of words, used to write poetry
  • safety-deposit box — a lockable metal box or drawer, especially in a bank vault, used for safely storing valuable papers, jewelry, etc.
  • saint george's day — April 23, celebrated in parts of the British Commonwealth in honor of the patron saint of Britain and especially in New Zealand as a bank holiday.
  • say/kiss goodnight — If you say goodnight to someone or kiss them goodnight, you say something such as 'Goodnight' to them or kiss them before one of you goes home or goes to sleep.
  • science dictionary — a specialized dictionary covering terms in the life, earth, and physical sciences, such as the online Science Dictionary on Dictionary.com. A science dictionary includes many technical terms with precise, specialized meanings—terms not normally found in general dictionaries—making it an invaluable resource for students and professionals in scientific fields.
  • search-and-destroy — designed to find and destroy by bombing etc
  • second only to sth — If you say that something is second only to something else, you mean that only that thing is better or greater than it.
  • secondary industry — manufacturing, services, etc.
  • self-contradictory — an act or instance of contradicting oneself or itself.
  • september holidays — a period of time in September when people do not have to go to school, college or work
  • shaggy dog (story) — a long, rambling joke, typically involving ludicrously unreal or irrational behavior and usually having an irrelevant conclusion
  • shop till you drop — If you shop till you drop, you do a large amount of shopping.
  • society of friends — a Christian denomination, founded in England c. 1650 by George Fox, that has no formal creed, liturgy, or priesthood and rejects violence in human relations, esp. warfare
  • sodium hyposulfite — sodium thiosulfate.
  • sodium thiocyanate — a white powder or colorless, deliquescent crystals, NaSCN, used chiefly in organic synthesis and in medicine in the treatment of hypertension.
  • solitary sandpiper — a North American sandpiper, Tringa solitaria, of inland wetlands, having a brownish-gray, white-spotted back and whitish underparts.
  • solubility product — the maximum number of undissociated ions, of an electrolyte in a saturated solution, capable at a given temperature of remaining in equilibrium with the undissolved phase of the solution.
  • sound and the fury — a novel (1929) by William Faulkner.
  • spotted flycatcher — a European woodland songbird, Muscicapa striata, with a greyish-brown streaked plumage: family Muscicapidae (Old World flycatchers)
  • stand-by generator — an electrical system which operates automatically in case the usual system malfunctions
  • stockholm syndrome — an emotional attachment to a captor formed by a hostage as a result of continuous stress, dependence, and a need to cooperate for survival.
  • strathclyde region — a former local government region in W Scotland: formed in 1975 from Glasgow, Renfrewshire, Lanarkshire, Buteshire, Dunbartonshire, and parts of Argyllshire, Ayrshire, and Stirlingshire; replaced in 1996 by the council areas of Glasgow, Renfrewshire, East Renfrewshire, Inverclyde, North Lanarkshire, South Lanarkshire, Argyll and Bute, East Dunbartonshire, West Dunbartonshire, North Ayrshire, South Ayrshire, and East Ayrshire
  • synthetic division — a simplified procedure for dividing a polynomial by a linear polynomial.
  • temporary hardness — hardness of water due to the presence of magnesium and calcium hydrogencarbonates, which can be precipitated as carbonates by boiling
  • tertiary education — education, following secondary education at a school, at a college or university
  • the back of beyond — a very remote place
  • the encyclopedists — the writers of the French Encyclopedia (1751-72) edited by Diderot and d'Alembert, which contained the advanced ideas of the period
  • the hotel industry — the branch of the services industry which provides hotels
  • the movie industry — the industry that makes entertainment films or movies
  • the same old story — the familiar or regular course of events
  • thirty-second note — a note having 1/32 of the time value of a whole note; demi-semiquaver.
  • thirty-second rest — a rest equal in value to a thirty-second note.
  • three-body problem — the problem of calculating the motions of three bodies in space moving under the influence of only their mutual gravitational attraction.
  • to close your mind — If you close your mind to something, you deliberately do not think about it or pay attention to it.
  • to cross your mind — If you say that an idea or possibility never crossed your mind, you mean that you did not think of it.
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