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18-letter words containing p, e, a, r

  • preservation order — In Britain, a preservation order is an official order that makes it illegal for anyone to alter or destroy something such as an old building or an area of countryside.
  • presidential suite — a suite of rooms, as in a hotel, suitable for a president or other head of state.
  • press photographer — a photographer who works for a newspaper, magazine, etc
  • pressure altimeter — an aneroid barometer adapted for measuring altitude by converting the indicated atmospheric pressure to altitude according to a standard relationship.
  • prestidigitization — /pres`t*-di"j*-ti:-zay"sh*n/ 1. A term coined by Daniel Klein <[email protected]> for the act of putting something into digital notation via sleight of hand. 2. Data entry through legerdemain.
  • presumption of law — a presumption based upon a policy of law or a general rule and not upon the facts or evidence in an individual case.
  • price on sb's head — If there is a price on someone 's head, an amount of money has been offered for the capture or killing of that person.
  • primate of england — a title of the archbishop of Canterbury.
  • primus inter pares — (of males) first among equals.
  • prince of darkness — Satan.
  • principal argument — the radian measure of the argument between −π and π of a complex number. Compare argument (def 8c).
  • principal meridian — a meridian line accurately laid out to serve as the reference meridian in land survey
  • prison authorities — the people in charge of running a prison
  • prisoner's dilemma — (in game theory) a scenario in which the outcome of one person's decision is determined by the simultaneous decisions of the other participants, resulting in a bad outcome for all of them if all act in their own self-interest.
  • private enterprise — free enterprise (def 1).
  • probability theory — the theory of analyzing and making statements concerning the probability of the occurrence of uncertain events. Compare probability (def 4).
  • processionary moth — a moth of the family Thaumetopoeidae, esp the oak processionary moth (Thaumetopoea processionea), the larvae of which leave the communal shelter nightly for food in a V-shaped procession
  • procrustean string — (programming)   A fixed-length string. If a string value is too long for the allocated space, it is truncated to fit; and if it is shorter, the empty space is padded, usually with space characters. This is an allusion to Procrustes, a legendary robber of ancient Attica. He bound his victims to a bed, and if they were shorter than the bed, he stretched their limbs until they would fit; if their limbs were longer, he lopped them off.
  • product acceptance — the verification or acceptance that a manufactured item meets required specifications or standards and is usable for its purpose
  • production manager — a supervisor of the budget, crew and other details in the production of a film or play
  • programme of study — the prescribed syllabus that pupils must be taught at each key stage in the National Curriculum
  • programme planning — the act of creating plans or schedules, esp in relation to your occupation
  • programmer's cheer — (humour)   "Shift to the left! Shift to the right! Pop up, push down! Byte! Byte! Byte!" [Origin?]
  • project management — leadership of a task or programme
  • projection machine — an apparatus that projects motion pictures; projector.
  • propaganda machine — the group of people, publications, etc, such as of a government, country etc, responsible for the organized dissemination of information, allegations, etc, to assist or damage the cause of a government, movement, etc
  • property insurance — insurance coverage for land and housing
  • proprietary colony — any of certain colonies, as Maryland and Pennsylvania, that were granted to an individual or group by the British crown and that were granted full rights of self-government.
  • proprietary rights — rights of ownership
  • protease inhibitor — a drug that inhibits the action of protease, especially any of a class of antiviral drugs that prevent the cleavage and replication of HIV proteins.
  • provascular tissue — procambium.
  • provision merchant — a person or company in the business of retailing food and other provisions
  • przewalski's horse — a wild horse, Equus caballus przevalskii, chiefly of Mongolia and Sinkiang, characterized by light yellow coloring and a stiff, upright black mane with no forelock: the only remaining breed of wild horse, it is now endangered and chiefly maintained in zoos.
  • pseudo-anarchistic — a person who advocates or believes in anarchy or anarchism.
  • psychogalvanometer — a type of galvanometer for detecting and measuring psychogalvanic currents.
  • psychotherapeutics — psychotherapy.
  • pulmonary embolism — the blockage of a pulmonary artery, often by a blood clot, that stops the flow of blood to the lungs and which can result in death if untreated
  • pulmonic airstream — a current of lung air set in motion by the respiratory muscles in the production of speech.
  • pulp canal therapy — endodontics.
  • purchasing officer — the member of staff in an organization who is responsible for buying goods or products
  • put heads together — the upper part of the body in humans, joined to the trunk by the neck, containing the brain, eyes, ears, nose, and mouth.
  • put out to pasture — Also called pastureland [pas-cher-land, pahs-] /ˈpæs tʃərˌlænd, ˈpɑs-/ (Show IPA). an area covered with grass or other plants used or suitable for the grazing of livestock; grassland.
  • pyramus and thisbe — (in Greek legend) two lovers of Babylon: Pyramus, wrongly supposing Thisbe to be dead, killed himself and she, encountering him in his death throes, did the same
  • pyromucic aldehyde — furfural.
  • qattara depression — a desert basin in the Libyan Desert, in NW Egypt: lowest point is 435 feet (133 meters) below sea level. 6950 sq. mi. (18,000 sq. km).
  • quarter-wave plate — a crystal thin enough to cause a phase difference of 90° between the ordinary and extraordinary rays of polarized light, thereby converting circularly polarized light into plane polarized light.
  • quartz-iodine lamp — a type of tungsten-halogen lamp containing small amounts of iodine and having a quartz envelope, operating at high temperature and producing an intense light for use in car headlamps, etc
  • rabbit-proof fence — a fence through which rabbits are unable to pass
  • radiation exposure — exposure to radiant energy or to the particles emitted in the transfer of radiant energy, esp the particles and gamma rays emitted in nuclear decay; exposure to radioactive substances
  • radiation pressure — the pressure exerted on a surface by electromagnetic radiation or by sound waves.
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