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20-letter words containing o, n, l, y

  • overenthusiastically — With excessive enthusiasm.
  • oxyacetylene welding — welding using an oxyacetylene burner
  • peremptory challenge — a formal objection to the service of a juror by a party to a criminal prosecution or a civil action that requires no showing of cause.
  • peroxyacetyl nitrate — an unstable nitrogen compound, found in certain types of smog, that is an irritant, esp. to the eyes and to plants
  • personality disorder — any of a group of mental disorders characterized by deeply ingrained maladaptive patterns of behavior and personality style, which are usually recognizable as early as adolescence and are often lifelong in duration.
  • phenyldiethanolamine — a white, crystalline, slightly water-soluble substance, C 1 0 H 1 5 NO 2 , used in the manufacture of dyes and in organic synthesis.
  • phenylpropyl acetate — a colorless, water-insoluble liquid, C 1 0 H 1 2 O 2 , used chiefly in perfumery.
  • photophosphorylation — phosphorylation that utilizes light as a source of energy, as in the formation of ATP from ADP and phosphorus during photosynthesis.
  • phthalocyanine green — a pigment used in painting, derived from chlorinated copper phthalocyanine and characterized chiefly by its intense green color and permanence.
  • physical examination — an examination, usually by a physician, of a person's body in order to determine his or her state of health or physical fitness, as for military service or participation in a sport.
  • physiologic jaundice — a transitory jaundice that affects some infants for the first few days after birth.
  • physiological saline — a salt solution that has the same osmotic pressure as that found in the blood or tissues
  • planetary precession — the small component of the precession of the equinoxes contributed by the motion of the ecliptic, the change in orientation of the plane of the earth's orbit being produced by the gravitational attraction of the planets.
  • polyanthus narcissus — a Eurasian amaryllidaceous plant, Narcissus tazetta, having clusters of small yellow or white fragrant flowers
  • polyconic projection — a conic projection in which the parallels are arcs of circles that are not concentric but are equally spaced along the central straight meridian, all other meridians being curves equally spaced along the parallels.
  • polymorphic function — a function in a computer program that can deal with a number of different types of data
  • polyvinylidene resin — any of the class of thermoplastic resins derived by the polymerization or copolymerization of a polyvinylidene compound, used similarly to the polyvinyl resins.
  • polyvinylpyrrolidone — a white, amorphous, water-soluble powder, (C 6 H 9 NO) n , used chiefly as a vehicle in the manufacture of pharmaceuticals.
  • portfolio employment — the practice of working for several employers simultaneously rather than working full-time for a single employer
  • postal delivery zone — zone (def 10).
  • primitive polynomial — a polynomial that has content equal to 1. Compare content1 (def 11a).
  • probability function — the function the values of which are probabilities of the distinct outcomes of a discrete random variable
  • property development — the business of buying land and buildings and then making improvements to them so that their selling price exceeds the price paid for them
  • property speculation — the buying or selling of property in the hope of deriving capital gains
  • propylphenyl acetate — phenylpropyl acetate.
  • prothonotary warbler — a wood warbler, Protonotaria citrea, of the eastern U.S., having an orange-yellow head and underparts, and bluish-gray wings and tail.
  • psychological moment — the proper or critical time for achieving a desired result: She found the right psychological moment to make her request.
  • pyroligneous alcohol — methyl alcohol.
  • quantum field theory — any theory in which fields are treated by the methods of quantum mechanics; each field can then be regarded as consisting of particles of a particular kind, which may be created and annihilated.
  • recreational therapy — therapy by means of recreational activities engaged in by the patient
  • revolving presidency — a form of presidency in which the president and vice-president, or countries or bodies acting as such, switch roles after a set period and then back again and so on
  • royal british legion — an organization founded in 1921 to provide services and assistance for former members of the armed forces
  • royal leamington spa — a city in Warwickshire, central England: health resort.
  • ruby-crowned kinglet — an olive-gray, American kinglet, Regulus calendula, the male of which has an erectile, ruby crest.
  • schizoid personality — sb with identity disorder
  • silicon tetrahydride — silane (def 1).
  • solitary confinement — the confinement of a prisoner in a cell or other place in which he or she is completely isolated from others.
  • south orkney islands — an uninhabited group of islands in the S Atlantic, southeast of Cape Horn: formerly a dependency of the Falkland Islands; part of the British Antarctic Territory since 1962 (claims are suspended under the Antarctic Treaty). Area: 621 sq km (240 sq miles)
  • spanish oyster plant — a composite plant, Scolymus hispanicus, of southern Europe, having spiny, thistlelike leaf margins, small yellow flowers, and an edible root.
  • subscription library — a commercial lending library
  • surveillance society — a society where surveillance technology is widely used to monitor people's everyday activities
  • synoptic meteorology — a branch of meteorology analyzing data collected simultaneously over a wide region, for the purpose of weather forecasting.
  • synthetic philosophy — the philosophy of Herbert Spencer, intended as a synthesis of all the sciences.
  • system international — Système International d'Unités
  • systemic circulation — the circulatory system in general.
  • technology agreement — a framework designed by trade unions for negotiating changes in employment caused by the introduction of new technology
  • teletype corporation — (company)   The company which made Teletype teletypewriters. Address: Skokie, Illinois, USA.
  • tetrahydrocannabinol — a compound, C 21 H 30 O 2 , that is the physiologically active component in cannabis preparations (marijuana, hashish, etc.) derived from the Indian hemp plant or produced synthetically. Abbreviation: THC.
  • the whole nine yards — everything that is required; the whole thing
  • thermal conductivity — the amount of heat per unit time per unit area that can be conducted through a plate of unit thickness of a given material, the faces of the plate differing by one unit of temperature.
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