bivalencyn.
/ˈbɪvələnsi/ Chemistry.
The quality of being bivalent.
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bivalency1880
1880 E. Cleminshaw tr. C. A. Wurtz Atomic Theory 181 The bivalency of certain metals.
This entry has not yet been fully updated (first published 1887; most recently modified version published online September 2018).
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n.1880