having a valence of two.
having two valences, as aluminum with valences of two and three.

Genetics. pertaining to associations of two homologous chromosomes.
Genetics. a pair of bivalent chromosomes, especially when pairing during meiosis.
(chem) another word for divalent
(of homologous chromosomes) associated together in pairs
a structure formed during meiosis consisting of two homologous chromosomes associated together

A pair of homologous, synapsed chromosomes associated together during·va’lence or bi·va’len·cy n.
Chemistry Having a valence of 2.


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