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4 definitions found
 for quaternary
From The Collaborative International Dictionary of English v.0.48 :

  Quaternary \Qua*ter"na*ry\, n. [L. numerus quaternarius: cf. F.
     quaternaire.]
     1. The number four. --Boyle.
        [1913 Webster]
  
     2. (Geol.) The Quaternary age, era, or formation. See the
        Chart of Geology.
        [1913 Webster]

From The Collaborative International Dictionary of English v.0.48 :

  Quaternary \Qua*ter"na*ry\, a. [L. quaternarius consisting of
     four each, containing four, fr. quaterni four each, fr.
     quattuor four: cf. F. quaternaire. See Four.]
     [1913 Webster]
     1. Consisting of four; by fours, or in sets of four.
        [1913 Webster]
  
     2. (Geol.) Later than, or subsequent to, the Tertiary;
        Post-tertiary; as, the Quaternary age, or Age of man.
        [1913 Webster]

From WordNet (r) 3.0 (2006) :

  quaternary
      adj 1: consisting of or especially arranged in sets of four;
             "quaternate leaves"; "a quaternary compound" [syn:
             quaternate, quaternary]
      2: coming next after the third and just before the fifth in
         position or time or degree or magnitude; "the quaternary
         period of geologic time extends from the end of the tertiary
         period to the present" [syn: fourth, 4th, quaternary]
      n 1: last 2 million years [syn: Quaternary, Quaternary
           period, Age of Man]
      2: the cardinal number that is the sum of three and one [syn:
         four, 4, IV, tetrad, quatern, quaternion,
         quaternary, quaternity, quartet, quadruplet,
         foursome, Little Joe]

From Moby Thesaurus II by Grady Ward, 1.0 :

  41 Moby Thesaurus words for "quaternary":
     Little Joe, biquadrate, biquadratic, four, four-legged,
     four-part diaphony, four-rayed, foursome, foursquare, quad,
     quadrangle, quadrature, quadrennium, quadric, quadrilateral,
     quadrille, quadrinomial, quadrivalent, quadruped, quadruplet,
     quartet, quartic, quartile, quatern, quaternion, quaternity,
     quatrefoil, rectangle, square, square dance, squaring, tetractinal,
     tetrad, tetragon, tetragram, tetragrammaton, tetrahedron,
     tetralogy, tetraphony, tetrapody, tetravalent
  
  

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