/ Dictionary / Index D detrusion: Meaning and Definition of Find definitions for: de•tru•sion Pronunciation: (di-tr'zhun), [key] — n. the act of detruding. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. detruncate detumescence Related Content Daily Word Quiz: agitated Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language