/ Dictionary / Index E embrittle: Meaning and Definition of Find definitions for: em•brit•tle Pronunciation: (em-brit'l), [key] — -tled, -tling. to make or become brittle. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: embrittle (Thesaurus) embrasure embrittlement Related Content Daily Word Quiz: obtrusive Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language