noun Chemistry.

any member of the alkene series.

Nearby words

  1. oleaster,
  2. oleate,
  3. olecranon,
  4. oled,
  5. olefiant gas,
  6. olefin fiber,
  7. olefin series,
  8. olefine,
  9. oleg,
  10. oleic

Also o·le·fine [oh-luh-fin, -feen] /ˈoʊ lə fɪn, -ˌfin/.

Origin of olefin

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

Related formso·le·fin·ic, adjective

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for olefine




other names for alkene
Derived Formsolefinic, adjective

Word Origin for olefine

C19: from French oléfiant, ultimately from Latin oleum oil + facere to make

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

Medicine definitions for olefine




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.

Science definitions for olefine



See alkene.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.