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Definition of: catabolism
(kə·tab′ə·liz′əm) noun Biol.
The series of changes by which living matter or protoplasm breaks down into less complex and more stable substances within a cell or organism; destructive metabolism: opposed to anabolism. Also spelled katabolism. [<Gk. katabolē destruction <kata- down + ballein throw]
—cat·a·bol·ic (kat′ə·bol′ik) adjective
—cat′a·bol′i·cal·ly adverb
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