/ Dictionary / Index E eosinophil: Meaning and Definition of Find definitions for: e•o•sin•o•phil Pronunciation: (ē"u-sin'u-fil), [key] — Biol. Biol. —n. any cell, tissue, organism, or substance that has an affinity for eosin and other acid stains. a leukocyte having eosinophilic granules in the cytoplasm and usually a bilobate nucleus. —adj. eosinophilic. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: eosinophil (Thesaurus) eosin eosinophilia Related Content Daily Word Quiz: frugal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language