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a suffix used to form names of unsaturated hydrocarbons (anthracene; benzene), especially those of the alkene series (butylene).
Origin of -ene
< Greek -ēnē, feminine of -ēnos, adj. suffix denoting origin or source Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for -ene


combining form
(in chemistry) indicating an unsaturated compound containing double bonds: benzene, ethylene
Word Origin
from Greek -ēnē, feminine patronymic suffix
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
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Word Origin and History for -ene

hydrocarbon suffix, from Greek name-forming suffic -ene; it has no real meaning in itself; probably abstracted mid-19c. from methylene (1834). Put in systematic use by Hofmann (1865). "The breakdown of methylene into methyl and -ene, and the identification of the last syllable of methyl with the general suffix -ly, led to the use of meth- as a separate combining-element, as, for example, in methane, methacrylic [Flood].

Online Etymology Dictionary, © 2010 Douglas Harper
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-ene in Medicine

-ene suff.
An unsaturated organic compound, especially one containing a double bond between carbon atoms: ethylene.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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-ene in Science
A suffix used to form the names of hydrocarbons having one or more double bonds, such as benzene.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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