/ Dictionary / Index D deadening: Meaning and Definition of Find definitions for: dead•en•ing Pronunciation: (ded'n-ing), [key] — n. a device or material employed to deaden or render dull. a device or material preventing the transmission of sound. a woodland in which the trees are killed by girdling prior to being cleared. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: deadening (Thesaurus) dead end deadeye Related Content Daily Word Quiz: gregarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language