Meaning of bivalent

bi•va•lent

Pronunciation: (bī-vā'lunt, biv'u-), [key]
— adj.
    1. having a valence of two.
    2. having two valences, as aluminum with valences of two and three.
  1. pertaining to associations of two homologous chromosomes.
—n.
  1. a pair of bivalent chromosomes, esp. when pairing during meiosis.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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