a chemical linkage consisting of two covalent bonds between two atoms of a molecule, represented in chemical formulas by two lines, two dots, or four dots, as CH2=CH2; CH2:CH2; CH2::CH2.
double standardRead more in this article about some frequently asked questions and fun facts related to our definitions.
triple-doubleRead more in this article about some frequently asked questions and fun facts related to our definitions.
- double blind experiment,
- double block,
- double blossom,
- double bogey,
- double boiler,
- double bridle,
- double centering,
- double check,
- double chin,
- double cloth
Origin of double bond
First recorded in 1885–90
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for double bond
Petroleum when cracked up to make gasoline gives isoprene or other double-bond compounds that go over into some form of rubber.Creative Chemistry|Edwin E. Slosson
a type of chemical bond consisting of two covalent bonds linking two atoms in a molecule
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
n. Symbol Δ
A covalent bond in which two electron pairs are shared between two atoms.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
A type of covalent bond in which two electron pairs are shared between two atoms. Each atom contributes two electrons to the bond. See more at covalent bond.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.