Dyad

4 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Dyad \Dy"ad\, n. [L. dyas, dyadis, the number two. Gr. ?: cf. F.
     dyade. See two, and cf. {Duad}.]
     1. Two units treated as one; a couple; a pair.
        [1913 Webster]
  
     2. (Chem.) An element, atom, or radical having a valence or


        combining power of two.
        [1913 Webster]

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Dyad \Dy"ad\, a. (Chem.)
     Having a valence or combining power of two; capable of being
     substituted for, combined with, or replaced by, two atoms of
     hydrogen; as, oxygen and calcium are dyad elements. See
     {Valence}.
     [1913 Webster]

From WordNet (r) 2.0 [wn]:

  dyad
       n : two items of the same kind [syn: {couple}, {pair}, {twosome},
            {twain}, {brace}, {span}, {yoke}, {couplet}, {distich},
           {duo}, {duet}, {duad}]

From Moby Thesaurus II by Grady Ward, 1.0 [moby-thes]:

  21 Moby Thesaurus words for "dyad":
     both, brace, couple, couplet, distich, double harness, doublet,
     duad, duet, duo, match, mates, pair, set of two, span, team,
     the two, twain, two, twosome, yoke