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2017 Word of the Year

covalence

[koh-vey-luh ns] /koʊˈveɪ ləns/
noun, Chemistry.
1.
the number of electron pairs that an atom can share with other atoms.
Origin of covalence
1915-1920
First recorded in 1915-20; co- + valence
Related forms
covalent, adjective
covalently, adverb
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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