| 单词 | covalent bond |
| 释义 | covalent bondnoun Chemistry.the bond formed by the sharing of a pair of electrons by two atoms. Origin of covalent bondFirst recorded in 1960–65 Words nearby covalent bondcouzin, COV, covalence, covalency, covalent, covalent bond, covariance, covariant, covariant theory, covariate, Covarrubias Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for covalent bondcovalent bond nouna 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 Cultural definitions for covalent bondcovalent 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. notes for covalent bondMany 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. Medical definitions for covalent bondcovalent bond n.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. Scientific definitions for covalent bondcovalent bond [ kō-vā′lənt ] 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. |
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