/ Dictionary / Index C cell sap: Meaning and Definition of Find definitions for: cell' sap" Pronunciation: [key] the watery fluid within the central vacuole of a plant cell. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. cell plate cell theory Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language