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17-letter words containing t, r, u, l

  • period-revolution — a rather large interval of time that is meaningful in the life of a person, in history, etc., because of its particular characteristics: a period of illness; a period of great profitability for a company; a period of social unrest in Germany.
  • perpetual spinach — a variety of spinach that keeps producing edible leaves
  • personal computer — a compact computer that uses a microprocessor and is designed for individual use, as by a person in an office or at home or school, for such applications as word processing, data management, financial analysis, or computer games. Abbreviation: PC.
  • personal equation — the tendency to personal bias that accounts for variation in interpretation or approach and for which allowance must be made.
  • phlebotomus fever — sandfly fever.
  • photofluorography — photography of images produced by a fluoroscopic examination, used in x-ray examination of the lungs of large groups of people.
  • pittsburg landing — a village in SW Tennessee, on the Tennessee River: battle of Shiloh in 1862.
  • plastics industry — the industry that makes plastics
  • plateau's problem — the problem in the calculus of variations of finding the surface with the least area bounded by a given closed curve in space.
  • 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.
  • plumbing fixtures — things such as pipes, sinks, toilets that are fixed in position in a building
  • plymouth brethren — a religious sect founded c. 1827, strongly Puritanical in outlook and prohibiting many secular occupations for its members. It combines elements of Calvinism, Pietism, and millenarianism, and has no organized ministry
  • pocket calculator — an electronic calculator small enough to be carried on one's person.
  • political refugee — a person who has fled from a homeland because of political persecution.
  • polyvinyl butyral — a white, water-insoluble, polyvinyl acetal made with butyraldehyde, used chiefly as an interlayer in the manufacture of safety glass.
  • popular etymology — folk etymology.
  • portable computer — (computer)   (Commonly, "laptop") A portable personal computer you can carry with one hand. Some laptops run so hot that it would be quite uncomforable to actually use them on your lap for long. The term "notebook" is often used to describe these, though it also implies a low weight (less than 2kg). A "luggable" is one you could carry in one hand but is so heavy you wouldn't want to. One that can by easily operated while held in one hand is a "palmtop". The computer considered by most historians to be the first true portable computer was the Osborne 1 but see the link below for other contenders.
  • postbaccalaureate — bachelor's degree.
  • poststructuralism — a variation of structuralism, often seen as a critique, emphasizing plurality of meaning and instability of concepts that structuralism uses to define society, language, etc.
  • 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.
  • poulter's measure — a metrical pattern using couplets having the first line in iambic hexameter, or 12 syllables, and the second in iambic heptameter, or 14 syllables.
  • powder metallurgy — the art or science of manufacturing useful articles by compacting metal and other powders in a die, followed by sintering.
  • power supply unit — (hardware)   (PSU) An electronic module that converts high voltage (110 or 240 VAC) alternating current mains electricity into smoothed direct current at the various differnt voltages required by the motherboard; internal peripheral devices, cheifly storage devices: hard disks, CD or DVD, floppy disks and external connections such as USB. A PSU needs a high enough power output rating to supply all the devices connected to it and should output as little as possible electrical noise, both on the output wires and as electromagnetic radiation. See also uninterruptable power supply.
  • pre-qualification — a quality, accomplishment, etc., that fits a person for some function, office, or the like.
  • pre-revolutionary — of, pertaining to, characterized by, or of the nature of a revolution, or a sudden, complete, or marked change: a revolutionary junta.
  • pressure altitude — the altitude for a given pressure in a standard atmosphere, such as that registered by a pressure altimeter.
  • primary qualities — any of the qualities inherent in an object, namely quantity, extent, figure, solidity, and motion or rest.
  • prison population — all the people who are confined in prison
  • probability curve — a curve that describes the distribution of probability over the values of a random variable.
  • procurator fiscal — In the Scottish legal system, the procurator fiscal is a public official who puts people on trial.
  • 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
  • prostatic utricle — a small pouch near the prostate gland that opens into the urethra.
  • 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.
  • public enterprise — economic activity by governmental organizations
  • public prosecutor — an officer charged with the conduct of criminal prosecution in the interest of the public.
  • publicity officer — a person who is employed to get publicity for an organization, or to provide information about it
  • push-pull circuit — a circuit using two similar electronic devices, such as matched valves, made to operate 180° out of phase with each other
  • quadratic formula — the formula for determining theroots of a quadratic equation from its coefficients: .
  • 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 newspaper — a more serious newspaper which gives detailed accounts of world events, as well as reports on business, culture, and society
  • 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.
  • quasiexperimental — (medicine) Describing a trial in which the assignment to a group is based upon an experimental condition.
  • 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.
  • rational function — a function that can be written as the quotient of two polynomials with integral coefficients.
  • recreational drug — drug taken for pleasure
  • recumbent bicycle — a type of bicycle that is ridden in a reclining position
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