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.