noun Chemistry.
any member of the alkene series.
Also, olefine [oh-luh-fin, -feen] .

1855–60; < French oléf(iant) (see olefiant gas) + -in2

olefinic, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To olefin
World English Dictionary
olefine or olefin (ˈəʊlɪˌfiːn, -fɪn, ˈɒl-, ˈəʊlɪˌfiːn, -fɪn, ˈɒl-)
other names for alkene
[C19: from French oléfiant, ultimately from Latin oleum oil + facere to make]
olefin or olefin
[C19: from French oléfiant, ultimately from Latin oleum oil + facere to make]
ole'finic or olefin

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
American Heritage
Medical Dictionary

olefin o·le·fin (ō'lə-fĭn)
Any of a group of unsaturated open chain hydrocarbons possessing one or more double bonds, the simplest of which is ethylene.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
American Heritage
Science Dictionary
olefin   (ō'lə-fĭn)  Pronunciation Key 
See alkene.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Example sentences for olefin
Polypropylene, commonly called olefin, a very common pile yarn, as is nylon.
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature