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.
'bivalent' also found in these Oxford entries:

