/ Dictionary / Index D decomposed: Meaning and Definition of Find definitions for: de•com•posed Pronunciation: (dē"kum-pōzd'), [key] — adj. having undergone decomposition. (of a feather) having the barbs separate, hanging loosely, and not interconnected by barbules. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: decomposed (Thesaurus) decompose decomposer Related Content Daily Word Quiz: clairvoyant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language