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17-letter words containing d, i, t, r

  • pocket dictionary — a small portable dictionary
  • polar coordinates — Usually, polar coordinates. one of two coordinates used to locate a point in a plane by the length of its radius vector and the angle this vector makes with the polar axis (polar angle)
  • police department — A police department is an official organization which is responsible for making sure that people obey the law.
  • post-and-rail tea — (in the 19th century) a coarse tea in which floating particles resembled a post-and-rail fence
  • postural drainage — a therapy for clearing congested lungs by placing the patient in a position for drainage by gravity, often accompanied by percussion with hollowed hands.
  • potassium bromide — a white, crystalline, water-soluble powder, KBr, having a bitter saline taste: used chiefly in the manufacture of photographic papers and plates, in engraving, and in medicine as a sedative.
  • potential divider — a resistor or series of resistors connected to a voltage source and used to provide voltages that are fractions of that of the source.
  • pre-modifications — an act or instance of modifying.
  • predatory pricing — If a company practises predatory pricing, it charges a much lower price for its products or services than its competitors in order to force them out of the market.
  • prescription drug — medication available only on doctor's instruction
  • pressure altitude — the altitude for a given pressure in a standard atmosphere, such as that registered by a pressure altimeter.
  • pressure gradient — the change of pressure per unit distance
  • primary dentition — the deciduous dentition
  • primary education — junior, elementary schooling
  • printing industry — the industry engaged in the business of producing printed matter
  • private detective — a detective who is not a member of an official force but is employed by private parties.
  • private education — education provided by a private individual or organization, rather than by the state or a public body
  • product liability — the responsibility of a manufacturer for injury or loss caused by its product.
  • production number — a specialty number or routine, usually performed by the entire cast consisting of musicians, singers, dancers, stars, etc., of a musical comedy, vaudeville show, or the like.
  • production string — A production string is the series of pipes through which the oil or gas is brought up from the reservoir.
  • production system — (programming)   A production system consists of a collection of productions (rules), a working memory of facts and an algorithm, known as forward chaining, for producing new facts from old. A rule becomes eligible to "fire" when its conditions match some set of elements currently in working memory. A conflict resolution strategy determines which of several eligible rules (the conflict set) fires next. A condition is a list of symbols which represent constants, which must be matched exactly; variables which bind to the thing they match and "<> symbol" which matches a field not equal to symbol. Example production systems are OPS5, CLIPS, flex.
  • production values — the quality of a media production (such as a film) in regards to elements such as colours, quality, style, etc
  • proof of identity — a document or documents used to verify someone's identity
  • proprietary brand — a brand of product that is privately owned and controlled
  • protected species — a species of animal or plant which it is forbidden by law to harm or destroy
  • prothoracic gland — either of a pair of endocrine glands in the anterior thorax of some insects, functioning to promote the series of molts from hatching to adulthood.
  • 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.
  • pterygoid process — either of two long bony plates extending downwards from each side of the sphenoid bone within the skull
  • pudding-pipe tree — golden shower.
  • purdue university — http://purdue.edu/.
  • put in a word for — to make favourable mention of (someone); recommend
  • 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.
  • 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
  • radial (ply) tire — a motor vehicle tire having a foundation of plies of rubberized cords running at right angles to the center line of the tread: it provides better handling, etc. than a bias ply tire
  • radial keratotomy — a surgical technique for correcting nearsightedness by making a series of spokelike incisions in the cornea to change its shape and focusing properties.
  • radiant emittance — radiant flux emitted per unit area.
  • radiant intensity — a measure of the amount of radiation emitted from a point expressed as the radiant flux per unit solid angle leaving this source
  • radiation pattern — the graphic representation of the strength and direction of electromagnetic radiation in the vicinity of a transmitting aerial
  • radiation therapy — x-rays used as treatment
  • radiative capture — the capture of a particle, as a neutron, by a nucleus, inducing the emission of electromagnetic radiation, as a gamma ray.
  • radio in the loop — Wireless Local Loop
  • radio-transparent — transparent to radiation; invisible in x-ray photographs and under fluoroscopy (opposed to radiopaque).
  • 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.
  • radiometeorograph — a device for the automatic transmission by radio of the data from a set of meteorological instruments
  • rail detector car — a car equipped with special instruments and used to locate defects in rails.
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