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Medical Term:


Pronunciation: bī-vā′lent, biv′ă-lent


  1. Having a combining power (valence) of 2.
  2. In cytology, a structure consisting of two paired homologous chromosomes, each split into two sister chromatids, as seen during the pachytene stage of prophase in meiosis.

Synonym(s): divalent

See Also: tetrad

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