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

  • parallelogram law — Mathematics, Physics. a rule for adding two vectors, as forces (parallelogram of forces) by placing the point of application of one at the point of origin of the other and obtaining their sum by constructing the line connecting the two remaining end points, the sum being the diagonal of the parallelogram whose adjacent sides are the two vectors.
  • parker house roll — a soft dinner roll made by folding a flat disk of dough in half.
  • particle velocity — the velocity of a point in a medium that is undergoing wave motion.
  • parts per million — the number of units (of a substance) present in a million units of another substance
  • pastoral theology — the branch of theology dealing with the responsibilities of members of the clergy to the people under their care.
  • peacock butterfly — a European nymphalid butterfly, Inachis io, having reddish-brown wings each marked with a purple eyespot
  • peer of the realm — any of a class of peers in Great Britain and Ireland entitled by heredity to sit in the House of Lords.
  • peloponnesian war — a war between Athens and Sparta, 431–404 b.c., that resulted in the transfer of hegemony in Greece from Athens to Sparta.
  • pentachlorophenol — a white, crystalline, water-insoluble powder, C 6 Cl 5 OH, used chiefly in fungicides, disinfectants, and wood preservatives.
  • pentylenetetrazol — a white, crystalline, bitter-tasting, water-soluble powder, C 6 H 1 0 N 4 , used as a respiratory and circulatory stimulant, especially in the treatment of barbiturate poisoning, and to induce a convulsive state in the treatment of certain mental diseases.
  • periodical cicada — seventeen-year locust.
  • peripheral vision — all that is visible to the eye outside the central area of focus; side vision.
  • 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
  • personnel carrier — a vehicle used for transporting troops
  • personnel manager — head of Human Resources department
  • 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
  • petrol filler cap — a small cover that goes over the hole in a vehicle into which you put petrol
  • phenylformic acid — benzoic acid.
  • phonological rule — an operation in generative phonology that substitutes one sound or class of sounds for another in a phonological derivation.
  • pillion passenger — a person who travels in a seat or place behind the rider of a motorcycle, scooter, horse, etc
  • 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.
  • platinic chloride — chloroplatinic acid.
  • pocket calculator — an electronic calculator small enough to be carried on one's person.
  • point reyes lilac — a prostrate shrub, Ceanothus gloriosus, of southern California, having leathery, roundish leaves and purplish or deep-blue flowers.
  • polar continental — a type of cold, dry air mass originating at high latitudes over land areas
  • 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)
  • polarizing filter — a camera lens filter used to control the plane of polarization of light entering the lens.
  • police department — A police department is an official organization which is responsible for making sure that people obey the law.
  • police procedural — a mystery novel, film, or television drama that deals realistically with police work.
  • political liberty — the right to express oneself freely and effectually regarding the conduct, makeup, and principles of the government under which one lives.
  • political refugee — a person who has fled from a homeland because of political persecution.
  • polyacrylonitrile — a polymer of acrylonitrile used in the manufacture of Orlon and other synthetic textiles.
  • polymorphonuclear — (of a leukocyte) having a lobulate nucleus.
  • 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.
  • portfolio manager — a person employed by others to make investments for them
  • 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
  • postal stationery — an envelope, postal card, wrapper, or aérogramme, with the stamp printed directly on the paper.
  • postbaccalaureate — bachelor's degree.
  • 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.
  • 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.
  • pre-qualification — a quality, accomplishment, etc., that fits a person for some function, office, or the like.
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