/ Dictionary / Index D detumescence: Meaning and Definition of Find definitions for: de•tu•mes•cence Pronunciation: (dē"t-mes'uns, -ty-), [key] — n. reduction or subsidence of swelling. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: detumescence (Thesaurus) detrusion Deucalion 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