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17-letter words containing r, a, c, i

  • pseudo-democratic — pertaining to or of the nature of democracy or a democracy.
  • pseudo-historical — of, pertaining to, treating, or characteristic of history or past events: historical records; historical research.
  • pseudo-moralistic — a person who teaches or inculcates morality.
  • psychographically — Psychology. a graph indicating the relative strength of the personality traits of an individual.
  • psychoprophylaxis — Lamaze method.
  • psychotherapeutic — psychotherapy.
  • purple of cassius — a purple pigment precipitated as a sol by the interaction of gold chloride and a solution of stannic acid and stannous chloride: used chiefly in the manufacture of ruby glass, ceramic glazes, and enamels.
  • put into practice — If you put a belief or method into practice, you behave or act in accordance with it.
  • pyroligneous acid — a yellowish, acidic, water-soluble liquid, containing about 10 percent acetic acid, obtained by the destructive distillation of wood: used for smoking meats.
  • pyrosulfuric acid — a strong, crystalline acid, H2S2O7, prepared commercially as a heavy, oily, fuming liquid: used in making explosives and dyes, as a sulfating agent, etc.
  • quadratic formula — the formula for determining theroots of a quadratic equation from its coefficients: .
  • quadratic residue — a number x that is relatively prime to a given integer y and for which a number z exists whose square gives the same remainder as x when divided by y.
  • quality assurance — a system for ensuring a desired level of quality in the development, production, or delivery of products and services: Quality assurance for nursing homes begins with a set of standards. Abbreviation: QA.
  • quality paperback — a softbound book that is usually larger and more expensive than a mass market paperback and is sold primarily in bookstores as a trade book.
  • quantum cell wire — (electronics, computing)   (Or "quantum wire", "binary wire") Quantum cells arranged in a line to carry signals. Adjacent cells with the same orientation are at a low energy state and a change of orientation at one end of a quantum wire propagates along the wire, transmitting a signal. However, unlike conventional wire, since only the orientation of charge pairs changes, no current flows. Circuits created using quantum cell wires are referred to as Quantum-dot Wireless Digital Circuits, see quantum dot, Quantum-dot Cellular Automata.
  • quantum chemistry — the application of quantum mechanics to the study of chemical phenomena.
  • quatercentenaries — Plural form of quatercentenary.
  • quattuordecillion — a cardinal number represented in the U.S. by 1 followed by 45 zeros, and in Great Britain by 1 followed by 84 zeros.
  • quick on the draw — having fast reflexes
  • racial harassment — persecution on the basis of race
  • rack one's brains — to strain in mental effort, esp to remember something or to find the solution to a problem
  • radiant emittance — radiant flux emitted per unit area.
  • radiative capture — the capture of a particle, as a neutron, by a nucleus, inducing the emission of electromagnetic radiation, as a gamma ray.
  • radio alarm clock — an alarm clock which consists of a radio that can be set to play at a particular time
  • radioactive decay — decay (def 8).
  • radioactive waste — the radioactive by-products from the operation of a nuclear reactor or from the reprocessing of depleted nuclear fuel.
  • radioluminescence — luminescence induced by nuclear radiation.
  • rail detector car — a car equipped with special instruments and used to locate defects in rails.
  • railroad crossing — place for vehicles to cross train tracks
  • rainbow coalition — a political grouping together by several minority parties
  • rational function — a function that can be written as the quotient of two polynomials with integral coefficients.
  • read the riot act — an English statute of 1715 providing that if 12 or more persons assemble unlawfully and riotously, to the disturbance of the public peace, and refuse to disperse upon proclamation they shall be considered guilty of felony.
  • reality principle — the motivating force or mechanism by which the child, who has previously sought immediate gratification of all wishes, realizes that gratification must sometimes be deferred or forgone.
  • receding forehead — a forehead which slopes backwards
  • receding hairline — hair that is thinning at the front
  • received standard — the form of educated English spoken originally in southern England and having Received Pronunciation as a chief distinguishing feature.
  • receiving blanket — a small blanket, usually of cotton, for wrapping an infant, especially following a bath.
  • recoil escapement — anchor escapement.
  • recreation centre — a facility open to the public for leisure and recreation activities
  • recreation ground — an open space for public recreation, esp one in a town, with swings and slides, etc, for children
  • recreational drug — drug taken for pleasure
  • recreationalist's — recreationist.
  • recrystallization — to become crystallized again.
  • rectangle slinger — polygon pusher
  • recurring decimal — Mathematics. repeating decimal.
  • recursion formula — a formula for determining the next term of a sequence from one or more of the preceding terms.
  • recursive acronym — (convention)   A hackish (and especially MIT) tradition is to choose acronyms and abbreviations that refer humorously to themselves or to other acronyms or abbreviations. The classic examples were two MIT editors called EINE ("EINE Is Not Emacs") and ZWEI ("ZWEI Was EINE Initially"). More recently, there is a Scheme compiler called LIAR (Liar Imitates Apply Recursively), and GNU stands for "GNU's Not Unix!" - and a company with the name CYGNUS, which expands to "Cygnus, Your GNU Support". See also mung.
  • red-backed shrike — a common Eurasian shrike, Lanius collurio, the male of which has a grey crown and rump, brown wings and back, and a black-and-white face
  • reduction formula — a formula, such as sin (90° ± A) = cos A, expressing the values of a trigonometric function of any angle greater than 90° in terms of a function of an acute angle
  • reference library — A reference library is a library that contains books which you can look at in the library itself but which you cannot borrow.
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