Univalent

2 definitions found

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

  Univalent \U*niv"a*lent\, a. [Uni- + L. valens, -entis, p. pr.
     See {Valence}.] (Chem.)
     Having a valence of one; capable of combining with, or of
     being substituted for, one atom of hydrogen; monovalent; --
     said of certain atoms and radicals.
     [1913 Webster]



From WordNet (r) 2.0 [wn]:

  univalent
       adj 1: used of a chromosome that is not paired or united with its
              homologous chromosome during synapsis; "a univalent
              chromosome" [ant: {bivalent}, {multivalent}]
       2: having a valence of 1 [syn: {monovalent}] [ant: {polyvalent}]