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18-letter words containing p, l, a, t, e

  • cellular telephone — a mobile phone
  • central projection — a projection of one plane onto a second plane such that a point on the first plane and its image on the second plane lie on a straight line through a fixed point not on either plane.
  • checkpoint charlie — a crossing between East and West Berlin during the Cold War
  • chemical potential — a thermodynamic function of a substance in a system that is the partial differential of the Gibbs function of the system with respect to the number of moles of the substance
  • chloroacetophenone — a white, crystalline, water-insoluble, poisonous solid, C 8 H 7 ClO, used in solution as a tear gas. Abbreviation: CN.
  • chromolithographer — One engaged in chromolithography.
  • clean up one's act — to start to behave in a responsible manner
  • cleopatra's needle — either of two Egyptian obelisks, originally set up at Heliopolis about 1500 bc: one was moved to the Thames Embankment, London, in 1878, the other to Central Park, New York, in 1880
  • closed corporation — a corporation the stock of which is owned by a small number of persons and is rarely traded on the open market
  • cobalt violet deep — a medium to strong purple color.
  • color transparency — a positive color image photographically produced on transparent film or glass and viewed by transmitted light, usually by projection.
  • colour temperature — the temperature of a black-body radiator at which it would emit radiation of the same chromaticity as the light under consideration
  • compartmentalizing — Present participle of compartmentalize.
  • complementarianism — The doctrine that genders in a society should have complementary roles.
  • complementary base — either of the nucleotide bases linked by a hydrogen bond on opposite strands of DNA or double-stranded RNA: guanine is the complementary base of cytosine, and adenine is the complementary base of thymine in DNA and of uracil in RNA.
  • complementary gene — one of a pair of genes, each from different loci, that together are required for the expression of a certain characteristic
  • complexity measure — (algorithm)   A quantity describing the complexity of a computation.
  • conceptual realism — the doctrine that universals have real and independent existence.
  • conceptualisations — Plural form of conceptualisation.
  • conceptualizations — Plural form of conceptualization.
  • controllable-pitch — (of a marine or aircraft propeller) having blades whose pitch can be changed during navigation or flight; variable-pitch.
  • corpuscular theory — the theory, originally proposed by Newton, and revived with the development of the quantum theory, that light consists of a stream of particles
  • cranial osteopathy — osteopathy that focuses on the cranium and the spine
  • crystal microphone — a microphone that uses a piezoelectric crystal to convert sound energy into electrical energy
  • cumberland plateau — division of the W Appalachians, extending from S W.Va. to N Ala.
  • cyclopean concrete — concrete containing stones larger than 6 inches (15 cm).
  • daisywheel printer — (printer)   A kind of impact printer where the characters are arranged on the ends of the spokes of a wheel (resembling the petals on a daisy). The wheel (usually made of plastic) is rotated to select the character to print and then an electrically operated hammer mechanism bends the selected spoke forward slightly, sandwiching an ink ribbon between the character and the paper, as in a typewriter. One advantage of this arrangement over that of a typewriter is that different wheels may be inserted to produce different typefaces.
  • decompartmentalize — to remove excessive compartmentalization from (an organization)
  • definitive plumage — the plumage of a bird that, once attained, does not change significantly in color or pattern for the rest of the bird's life.
  • delaware water gap — a gorge on the boundary between E Pennsylvania and NW New Jersey.
  • departmental store — a department store.
  • departure platform — a raised area at a railway station from which passengers can board trains prior to their departing
  • dependent variable — a variable in a mathematical equation or statement whose value depends on that taken on by the independent variable
  • depository library — a library designated by law to receive without charge all or a selection of the official publications of a government.
  • desalination plant — a factory where salt is removed from salt water in order to make the water suitable for drinking and irrigation
  • descriptive clause — a relative clause that describes or supplements but is not essential in establishing the identity of the antecedent and is usually set off by commas in English. In This year, which has been dry, is bad for crops the clause which has been dry is a nonrestrictive clause.
  • devil's paintbrush — a perennial European hawkweed (Hieracium aurantiacum) with leafless flower stalks bearing a cluster of orange-red heads: now a common weed in N U.S. and Canada
  • dialytic telescope — a type of achromatic telescope with a second correcting lens
  • dietary supplement — a substance taken in addition to what you eat in order to promote health
  • digital audio tape — a cassette containing magnetic tape used for high-fidelity digital recording or playback of audio. Abbreviation: DAT.
  • dimethyltryptamine — a hallucinogenic drug, C 12 H 16 N 2 , with an action of short duration. Abbreviation: DMT.
  • diphosphoglycerate — an ester of phosphoric acid and glyceric acid that occurs in the blood and that promotes the release of hemoglobin-bound oxygen.
  • diplomatic service — diplomatic corps
  • diplomatic shuttle — a series of diplomatic visits to other states made by an official, such as an ambassador or envoy
  • disability pension — a pension paid to people who are unable to continue to work because of a disability
  • dispersible tablet — A dispersible tablet is a tablet that disintegrates in water or other liquid.
  • disproportionately — not proportionate; out of proportion, as in size or number.
  • domestic appliance — a machine used for household tasks, for example, a washing machine, refrigerator, etc.
  • ejaculatio praecox — premature ejaculation during sexual intercourse
  • electric potential — the work required to transfer a unit positive electric charge from an infinite distance to a given point against an electric field
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