/ Dictionary / Index I interfenestration: Meaning and Definition of Find definitions for: in•ter•fen•es•tra•tion Pronunciation: (in"tur-fen"u-strā'shun), [key] — n. a space between two windows. the art or process of arranging the openings in a wall. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. interfaith interfere Related Content Daily Word Quiz: procrastinate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language