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17-letter words containing s, t, o, p, l

  • optical astronomy — the branch of observational astronomy using telescopes to observe or photograph celestial objects in visible light.
  • optical isomerism — stereoisomerism in which the isomers are identical in molecular weight and most chemical and physical properties but differ in their effect on the rotation of polarized light.
  • paleobiochemistry — the study of biochemical processes that occurred in fossil life forms.
  • paleoconservative — a person advocating an older, traditional type of conservatism, especially in politics.
  • papanicolaou test — Pap test.
  • parts per million — the number of units (of a substance) present in a million units of another substance
  • pashmina politics — the adoption of political policies immediately after they have gone out of fashion
  • pastoral symphony — the Symphony No. 6 in F major (1807–08) by Ludwig van Beethoven.
  • pastoral theology — the branch of theology dealing with the responsibilities of members of the clergy to the people under their care.
  • patriarchal cross — a Latin cross having a shorter crosspiece above the customary one.
  • penalty shoot-out — In football, a penalty shoot-out is a way of deciding the result of a game that has ended in a draw. Players from each team try to score a goal in turn until one player fails to score and their team loses the game.
  • percussion bullet — a bullet that is exploded by percussion
  • 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 distance — personal space.
  • personal equation — the tendency to personal bias that accounts for variation in interpretation or approach and for which allowance must be made.
  • personal property — an estate or property consisting of movable articles both corporeal, as furniture or jewelry, or incorporeal, as stocks or bonds (distinguished from real property).
  • personality clash — friction between two people who have different personalities or points of view
  • peterloo massacre — an incident at St Peter's Fields, Manchester, in 1819 in which a radical meeting was broken up by a cavalry charge, resulting in about 500 injuries and 11 deaths
  • phenyl isocyanate — a liquid reagent, C 7 H 5 NO, having an unpleasant, irritating odor: used chiefly for identifying alcohols and amines.
  • phlebotomus fever — sandfly fever.
  • photoluminescence — luminescence induced by the absorption of infrared radiation, visible light, or ultraviolet radiation.
  • planck's constant — the fundamental constant of quantum mechanics, expressing the ratio of the energy of one quantum of radiation to the frequency of the radiation and approximately equal to 6.624 × 10− 27 erg-seconds. Symbol: h.
  • plastic explosive — a puttylike substance that contains an explosive charge, and is detonated by fuse or by remote control: used especially by terrorists and in guerrilla warfare.
  • 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.
  • play with oneself — a dramatic composition or piece; drama.
  • pocket battleship — a small heavily armed and armored warship serving as a battleship because of limitations imposed by treaty.
  • point reyes lilac — a prostrate shrub, Ceanothus gloriosus, of southern California, having leathery, roundish leaves and purplish or deep-blue flowers.
  • pointer swizzling — swizzle
  • poison-pen letter — A poison-pen letter is an unpleasant unsigned letter which is sent in order to upset someone or to cause trouble.
  • 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)
  • polioencephalitis — a disease characterized by inflammation of the gray matter of the brain.
  • political science — a social science dealing with political institutions and with the principles and conduct of government.
  • polystyrene chips — small pieces of polystyrene used for insulating or packing
  • 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
  • positive theology — a theological approach or tradition in which the nature of God is thought to be knowable and is understood through positive statements. See also cataphasis (def 2).
  • post-and-rail tea — (in the 19th century) a coarse tea in which floating particles resembled a post-and-rail fence
  • post-depositional — removal from an office or position.
  • postal stationery — an envelope, postal card, wrapper, or aérogramme, with the stamp printed directly on the paper.
  • postbaccalaureate — bachelor's degree.
  • postmillennialism — the doctrine or belief that the second coming of Christ will follow the millennium.
  • 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 oxalate — a colorless, crystalline, water-soluble, poisonous solid, K 2 C 2 O 4 ⋅H 2 O, used chiefly as a bleaching agent and in medical tests as an anticoagulant.
  • potassium sulfate — a crystalline, water-soluble solid, K 2 SO 4 , used chiefly in the manufacture of fertilizers, alums, and mineral water, and as a reagent in analytical chemistry.
  • 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.
  • 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.
  • 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.
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