/ Dictionary / Index C consumption: Meaning and Definition of Find definitions for: con•sump•tion Pronunciation: (kun-sump'shun), [key] — n. the act of consuming, as by use, decay, or destruction. the amount consumed: the high consumption of gasoline. the using up of goods and services having an exchangeable value. Older Use.tuberculosis of the lungs. progressive wasting of the body. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: consumption (Thesaurus) consummatory behavior consumption goods Related Content Daily Word Quiz: cygnet Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language