catabolism [ k uh- tab- uh-liz- uh m ] SHOW IPA / kəˈtæb əˌlɪz əm / PHONETIC RESPELLING noun . Biology, Physiology destructive metabolism; the breaking down in living organisms of more complex substances into simpler ones, with the release of energy (opposed to anabolism). Nearby words cata-
catabolite gene activator protein
catachresis Origin of catabolism 1875–80;
) a throwing down (
a throw; compare
to throw down) +
-ism Related forms cat·a·bol·ic , [kat- uh- bol-ik] /ˌkæt əˈbɒl ɪk/ adjective cat·a·bol·i·cal·ly, adverb hy·per·ca·tab·o·lism, noun
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for catabolism
In this way, anabolism and
catabolism exist in balance with each other and are the ying and the yang of metabolism.
catabolism, cells break down those large molecules to release energy and dispose of waste.
Similar considerations as to the formation and breaking up of the molecules in anabolism and
catabolism apply to polymerization.
He thinks of the world as an animal organism subject to what are now called anabolism and
Swelling of the spleen is caused by
catabolism of the Malpighian bodies.
Every centre of
catabolism is therefore a positive pole of diffusion.
The processes concerned in metabolism are chiefly those of building up, “anabolism,” and breaking down, “
catabolism.” British Dictionary definitions for catabolism noun a metabolic process in which complex molecules are broken down into simple ones with the release of energy; destructive metabolism Compare anabolism Derived Forms catabolic or katabolic ( ˌkætəˈbɒlɪk), adjective catabolically or katabolically, adverb Word Origin for catabolism
katabolism, from Greek katabolē a throwing down, from kataballein, from kata- down + ballein to throw
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for catabolism n.
katabolism, "destructive metabolism," from Greek katabole "a throwing down" (also "a foundation"), from kataballein "to throw down," from kata- "down" (see cata-) + ballein "to throw" (see ballistics). Barnhart says probably formed in English on the model of metabolism. Spelling Latinized from 1889.
Online Etymology Dictionary, © 2010 Douglas Harper
Medicine definitions for catabolism n. The metabolic breakdown of complex molecules into simpler ones, often resulting in a release of energy. Related forms cat′a•bol ( ′ic kăt′ə-bŏl) ′ĭk adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Science definitions for catabolism The phase of metabolism in which energy, in the form of ATP, is produced by the breakdown of complex molecules, such as starches, proteins and fats, into simpler ones. Compare anabolism. Related forms catabolic adjective
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Culture definitions for catabolism
Biochemical reactions that break down
molecules in metabolism. Molecules may be broken down to gain their energy or to prepare them for disposal from the body. ( Compare anabolism.)
The New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.