bivalent Meaning, Definition & Usage

  1. adjective having a valence of two or having two valences
    divalent.
  2. adjective used of homologous chromosomes associated in pairs in synapsis
    double.

WordNet

Biv"a*lent adjective
Etymology
L. bis twice + valens, p. pr. See Valence.
Definitions
  1. (Chem.) Equivalent in combining or displacing power to two atoms of hydrogen; dyad.

Webster 1913