| 单词 | double bond |
| 释义 | double bondnoun Chemistry.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. Origin of double bondFirst recorded in 1885–90 Words nearby double bonddouble blind experiment, double block, double blossom, double bogey, double boiler, double bond, double-book, double-bottom, double-breasted, double-breasting, double bridle Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for double bond
British Dictionary definitions for double bonddouble bond nouna 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 Medical definitions for double bonddouble bond n. Symbol ΔA 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. Scientific definitions for double bonddouble bond [ dŭb′əl ] 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. |
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