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The Collaborative International Dictionary
katabolism

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.

Wiktionary
katabolism

n. (alternative form of catabolism English)

WordNet
katabolism

n. breakdown of more complex substances into simpler ones with release of energy [syn: catabolism, dissimilation, destructive metabolism] [ant: anabolism]

Usage examples of "katabolism".

An unbiological order, I call it, because it obeys none of the natural laws of hereditary and environmental change, pays no attention to the survival of the fittest, positively sneers at any attempt on the part of man to work out a rational life cycle, is possibly immortal, unquestionably immoral, evidences anabolism but not katabolism, ruts, spawns, and breeds but does not reproduce, lays no eggs, builds no nests, seeks but does not find, wanders but does not rest.