Dictionary.com
definitions

covalent bond

noun Chemistry.
  1. the bond formed by the sharing of a pair of electrons by two atoms.

Origin of covalent bond

First recorded in 1960–65
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for covalent bond

covalent bond

noun
  1. a type of chemical bond involving the sharing of electrons between atoms in a molecule, esp the sharing of a pair of electrons by two adjacent atoms
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
covalent bond in Medicine

covalent bond

n.
  1. A chemical bond formed by the sharing of one or more electrons, especially pairs of electrons, between atoms.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
covalent bond in Science

covalent bond

[kō-vā′lənt]
  1. A chemical bond formed when electrons are shared between two atoms. Usually each atom contributes one electron to form a pair of electrons that are shared by both atoms. See more at coordinate bond double bond polar bond.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
covalent bond in Culture

covalent bond

[(koh-vay-luhnt)]

A chemical bond in which two atoms share some of their valence electrons, thereby creating a force that holds the atoms together.

Note

Many molecules in living systems are held together by covalent bonds.
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.