/ Dictionary / Index I infiltration gallery: Meaning and Definition of Find definitions for: infiltra'tion gal"lery Pronunciation: [key] a conduit, built in permeable earth, for collecting ground water. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. infiltration capacity infiltrometer Related Content Daily Word Quiz: fabricate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language