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17-letter words containing p, r, o, t, i, s

  • positive electron — positron.
  • 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.
  • 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.
  • 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.
  • posttranslational — Genetics, Biochemistry. occurring after the synthesis of a polypeptide chain.
  • 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.
  • 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-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.
  • precision casting — investment casting.
  • 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)
  • 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.
  • press association — an organization formed for the purpose of gathering news for transmittal to its members. Compare news agency.
  • 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.
  • prismatic compass — a hand compass equipped with sights and prisms to permit aiming the instrument at a point and at the same time reading the compass direction of the point.
  • prison population — all the people who are confined in prison
  • private ownership — the fact of being owned by a private individual or organization, rather than by the state or a public body
  • procurator fiscal — In the Scottish legal system, the procurator fiscal is a public official who puts people on trial.
  • 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
  • progressive party — a political party formed in 1912 under the leadership of Theodore Roosevelt, advocating popular control of government, direct primaries, the initiative, the referendum, woman suffrage, etc.
  • property mistress — a female member of the stage crew in charge of the stage properties
  • prosperity gospel — a modern version or, according to some, perversion of the gospel according to which the full blessings of God available to those who approach Him in faith and obedience include wealth, health and power
  • prostatic utricle — a small pouch near the prostate gland that opens into the urethra.
  • protected species — a species of animal or plant which it is forbidden by law to harm or destroy
  • protective system — protectionism (def 1).
  • protein synthesis — the process by which amino acids are linearly arranged into proteins through the involvement of ribosomal RNA, transfer RNA, messenger RNA, and various enzymes.
  • proton microscope — a powerful type of microscope that uses a beam of protons, giving high resolution and sharp contrast
  • 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.
  • psychometric test — a test designed to test a person's mental state, personality and thought processes
  • psychotherapeutic — psychotherapy.
  • pterygoid process — either of two long bony plates extending downwards from each side of the sphenoid bone within the skull
  • public prosecutor — an officer charged with the conduct of criminal prosecution in the interest of the public.
  • radio-transparent — transparent to radiation; invisible in x-ray photographs and under fluoroscopy (opposed to radiopaque).
  • recoil escapement — anchor escapement.
  • recovery position — a position in which an unconscious person can be lain on the floor, which minimises them from further risk
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