• synonyms


[ koh-vey-luh ns ]
/ koʊˈveɪ ləns /

noun Chemistry.

the number of electron pairs that an atom can share with other atoms.

Nearby words

couzin, coué, coué, émile, couéism, cov, covalence, covalency, covalent, covalent bond, covariance, covariant

Origin of covalence

First recorded in 1915–20; co- + valence
Related formsco·va·lent, adjectiveco·va·lent·ly, adverb Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for covalent

  • "The covalent bonds… are so strong that you can't break them down by heat," explained Dufresne.

    Home Ec at Harvard|Laura Colarusso|December 6, 2010|DAILY BEAST

Word Origin and History for covalent



1929, from covalence (1919), from co- + valence.

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for covalent


[ kō-vālənt ]


Of or relating to a chemical bond characterized by one or more pairs of shared electrons.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.