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katabolism
[ noun ]
breakdown in living organisms of more complex substances into simpler ones together with release of energy
<noun.process>




Katabolism \Ka*tab"o*lism\, n. [Gr. ? down + ? to throw.]
(Physiol.)
Destructive or downward metabolism; regressive metamorphism;
same as {catabolism} (now the more common spelling); --
opposed to {anabolism}. See {Disassimilation}.


catabolism \catabolism\ n.
the breakdown of more complex substances into simpler ones
with release of energy, in living organisms; destructive or
downward metabolism; -- a form of metabolism, opposed to
{anabolism}. See also {Disassimilation}. [Formerly spelled
{katabolism}.]

Syn: katabolism, dissimilation, destructive metabolism.
[WordNet 1.5]