bivalent


Concise Oxford English Dictionary © 2008 Oxford University Press:
bivalent
adjective
  • 1 /ˈbɪv(ə)l(ə)nt/ Biology (of homologous chromosomes) associated in pairs.
  • 2 /bʌɪˈveɪl(ə)nt/ Chemistry another term for divalent.
noun /ˈbɪv(ə)l(ə)nt/ Biology a pair of homologous chromosomes.
– origin C19: from bi- + L. valent-, valere ‘be strong’.
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