BIVALENT

bivalent, double

(adjective) used of homologous chromosomes associated in pairs in synapsis

bivalent, divalent

(adjective) having a valence of two or having two valences

Source: WordNet® 3.1

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Etymology

Adjective

bivalent (comparative more bivalent, superlative most bivalent)

(chemistry) Having a valence of 2; having two ligands

(genetics) Of, or relating to a pair of homologous synapsed chromosomes that occur during meiosis.

(of a vaccine) Protecting against two different viruses.

Noun

bivalent (plural bivalents)

(genetics) Any bivalent chromosome.

Source: Wiktionary

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Biv"a*lent, a. Etym: [L. bis twice + valens, p. pr. See Valence.] (Chem.)

Definition: Equivalent in combining or displacing power to two atoms of hydrogen; dyad.

Source: Webster’s Unabridged Dictionary 1913 Edition

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