/ Dictionary / Index D diffract: Meaning and Definition of Find definitions for: dif•fract Pronunciation: (di-frakt'), [key] — v.t. to break up or bend by diffraction. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: diffract (Thesaurus) Difflugia* diffraction Related Content Daily Word Quiz: eureka Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language