Breadcrumb Home > Dictionary > Index S surge tank: Meaning and Definition of Find definitions for: surge' tank" Pronunciation: [key] a large surge chamber. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. surgery Surg. Gen. ✖ Related Content Daily Word Quiz: centrifugal Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language