/ Dictionary / Index H hydraulic cement: Meaning and Definition of Find definitions for: hydrau'lic cement' Pronunciation: [key] cement that can solidify under water. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. hydraulic brake hydraulic coupling Related Content Daily Word Quiz: vertigo Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language