[ en-der-gon-ik ]
/ ˌɛn dərˈgɒn ɪk /

adjective Biochemistry.

(of a biochemical reaction) requiring energy.
Compare exergonic.

Origin of endergonic

1935–40; end- + Greek érgon work + -ic
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for endergonic

/ (ˌɛndəˈɡɒnɪk) /


(of a biochemical reaction) requiring energy to proceedCompare exergonic

Word Origin for endergonic

C20: from end (o-) + Greek ergon work + -ic
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 endergonic

[ ĕn′dər-gŏnĭk ]


Of or relating to a chemical reaction that absorbs energy and therefore cools its surroundings.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for endergonic

[ ĕn′dər-gŏnĭk ]

Relating to a chemical reaction that requires the absorption of energy. The production of sugars by plants during photosynthesis is an endergonic reaction, where sunlight provides the necessary energy. Compare exergonic.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.