/ Dictionary / Index D digester: Meaning and Definition of Find definitions for: di•gest•er Pronunciation: (di-jes'tur, dī-), [key] — n. a person or thing that digests. an apparatus in which substances are softened or disintegrated by moisture, heat, chemical action, or the like. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: digester (Thesaurus) digestant digestible Related Content Daily Word Quiz: impetuous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language