the GNU version of the Collaborative International Dictionary of English
n. Destructive or downward metabolism; regressive metamorphism; same as catabolism (now the more common spelling); -- opposed to anabolism. See disassimilation.
The Century Dictionary and Cyclopedia
n. See catabolism.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. breakdown in living organisms of more complex substances into simpler ones together with release of energy
Word Usage
"She could feel it, the terrible katabolism and metabolism in her blood, changing her even as a creature, changing her to another creature."