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17-letter words containing o, p, e, r

  • positive polarity — the grammatical characteristic of a word or phrase, such as delicious or rather, that may normally only be used in a semantically or syntactically positive or affirmative context
  • post-and-rail tea — (in the 19th century) a coarse tea in which floating particles resembled a post-and-rail fence
  • post-resurrection — the act of rising from the dead.
  • postal stationery — an envelope, postal card, wrapper, or aérogramme, with the stamp printed directly on the paper.
  • postbaccalaureate — bachelor's degree.
  • postimpressionism — a varied development of Impressionism by a group of painters chiefly between 1880 and 1900 stressing formal structure, as with Cézanne and Seurat, or the expressive possibilities of form and color, as with Van Gogh and Gauguin.
  • 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 bromate — a white, crystalline, water-soluble powder, KBrO 3 , used chiefly as an oxidizing agent and as an analytical reagent.
  • 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.
  • potassium nitrate — a crystalline compound, KNO 3 , produced by nitrification in soil, and used in gunpowders, fertilizers, and preservatives; saltpeter; niter.
  • potato leafhopper — any of various leafhoppers that are serious pests, damaging a wide variety of cultivated and wild plants, especially potatoes.
  • 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.
  • 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 of attorney — a written document given by one person or party to another authorizing the latter to act for the former.
  • 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.
  • prairie provinces — the Canadian provinces of Manitoba, Saskatchewan, and Alberta, which lie in the N Great Plains region of North America: the chief wheat and petroleum producing area of Canada
  • pre-authorization — the act of authorizing.
  • pre-communication — the act or process of communicating; fact of being communicated.
  • pre-concentration — the act of concentrating; the state of being concentrated.
  • pre-configuration — the relative disposition or arrangement of the parts or elements of a thing.
  • pre-incorporation — the act of incorporating or the state of being incorporated.
  • pre-investigation — the act or process of investigating or the condition of being investigated.
  • pre-manifestation — an act of manifesting.
  • pre-modifications — an act or instance of modifying.
  • 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.
  • pre-technological — of or relating to technology; relating to science and industry.
  • prealternate molt — the molt by which many birds replace only some and rarely all of the feathers assumed at the prebasic molt, usually occurring prior to breeding.
  • precision bombing — aerial bombing in which bombs are dropped, as accurately as possible, on a specific, usually small, target.
  • precision casting — investment casting.
  • 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.
  • prefect apostolic — the administrator, usually below the rank of bishop, in charge of a prefecture apostolic.
  • preferential shop — a shop in which union members are preferred, usually by agreement of an employer with a union.
  • premonstratensian — a member of a religious order founded at Prémontré in N France in 1120 by St Norbert (about 1080–1134)
  • prerogative court — a former ecclesiastical court in England and Ireland for the trial of certain testamentary cases.
  • prescription drug — medication available only on doctor's instruction
  • presentation copy — a copy of a book given by the publisher or author
  • presentationalism — a style of production in which the audience is addressed directly with songs, skits, exposition, etc., and no attempt is made at realism.
  • presiding officer — the person who presides over the Scottish Parliament or Welsh Assembly
  • press association — an organization formed for the purpose of gathering news for transmittal to its members. Compare news agency.
  • pressure drawdown — Pressure drawdown is the difference between the reservoir pressure and the flowing wellbore pressure, which drives fluids from the reservoir into the wellbore.
  • previous question — a move that a vote be taken at once on a main question, used especially as a means of cutting off further debate.
  • primary dentition — the deciduous dentition
  • primary education — junior, elementary schooling
  • primary intention — Logic. See under intention (def 5a).
  • primary processes — the generally unorganized mental activity characteristic of the unconscious and occurring in dreams, fantasies, and related processes.
  • primary-intention — an act or instance of determining mentally upon some action or result.
  • priority check-in — Priority check-in at a hotel is an arrangement which allows a guest to check in without waiting in a line.
  • private education — education provided by a private individual or organization, rather than by the state or a public body
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