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See also: Quadrate


Part or all of this entry has been imported from the 1913 edition of Webster’s Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.
(See the entry for quadrate in
Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.)


Borrowed from Old French quadrat (a square), from Latin quadratus (square), past participle of quadrare (to make four-cornered, square, put in order, intransitive be square), from quadra (a square), later quadrus (square), from quattuor (four).


quadrate (comparative more quadrate, superlative most quadrate)

  1. Having four equal sides, the opposite sides parallel, and four right angles; square.
    • Foxe
      Figures, some round, some triangle, some quadrate.
  2. Produced by multiplying a number by itself; square.
    • 1646-72, Sir Thomas Browne, Pseudodoxia Epidemica, book 4, ch. 12:
      The number of Ten hath been as highly extolled, as containing even, odd, long, plain, quadrate and cubical numbers.
  3. (archaic) Square; even; balanced; equal; exact.
    • Howell
      a quadrate, solid, wise man
  4. (archaic) Squared; suited; correspondent.
    • Harvey
      a generical description quadrate to both


quadrate (plural quadrates)

  1. (geometry) A plane surface with four equal sides and four right angles; a square; hence, figuratively, anything having the outline of a square.
    • 1667, John Milton, Paradise Lost, Book VI:
      At which command, the powers militant
      That stood for heaven, in mighty quadrate joined.
  2. (astrology) An aspect of the heavenly bodies in which they are distant from each other 90°, or the quarter of a circle; quartile.
  3. (anatomy) The quadrate bone.


quadrate (third-person singular simple present quadrates, present participle quadrating, simple past and past participle quadrated)

  1. (archaic, transitive) To adjust (a gun) on its carriage.
  2. (archaic, transitive) To train (a gun) for horizontal firing.
  3. (archaic, transitive, intransitive) To square.
    quadrating the circle
  4. (archaic, transitive) To square; to agree; to suit; to correspond (with).
    not quadrating with American ideas of right, justice and reason
    • Edmund Burke
      The objections of these speculatists, if its forces do not quadrate with their theories, are as valid against such an old and beneficent government as against the most violent tyranny or the greenest usurpation.
    • 1749, Henry Fielding, The History of Tom Jones, a Foundling. In Six Volumes, volume (please specify |volume=I to VI), London: Printed by A[ndrew] Millar, [], OCLC 928184292:
      In short I am resolved, from this instance, never to give way to the weakness of human nature more, nor to think anything virtue which doth not exactly quadrate with the unerring rule of right.

Further reading[edit]





  1. Feminine plural form of quadrato



From quadrō (make square), from quadrus (square, four-sided), from quattuor (four).



quadrātē (not comparable)

  1. fourfold, four times

Related terms[edit]