17-letter words containing d, a, r, t
- pillar-and-breast — room-and-pillar.
- pittsburg landing — a village in SW Tennessee, on the Tennessee River: battle of Shiloh in 1862.
- plastics industry — the industry that makes plastics
- platinic chloride — chloroplatinic acid.
- plug and feathers — an apparatus for splitting stone, consisting of two tapered bars (feathers) inserted into a hole drilled into the stone, between which a narrow wedge (plug) is hammered to spread them.
- 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.
- port orford cedar — a tall tree, Chamaecyparis lawsoniana, of coastal Oregon, having flattened, scalelike foliage and wood highly valued as timber.
- 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.
- powder metallurgy — the art or science of manufacturing useful articles by compacting metal and other powders in a die, followed by sintering.
- 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.
- 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
- 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.
- product placement — Product placement is a form of advertising in which a company has its product placed where it can be clearly seen during a film or television programme.
- production values — the quality of a media production (such as a film) in regards to elements such as colours, quality, style, etc
- promenade concert — a concert at which some of the audience stand rather than sit
- proprietary brand — a brand of product that is privately owned and controlled
- 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.
- put a dampener on — To put a dampener on something means the same as to put a damper on it.
- 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.