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eosinophil e·o·sin·o·phil (ē'ə-sĭn'ə-fĭl') or e·o·sin·o·phile (-fīl')
A type of white blood cell containing cytoplasmic granules that are easily stained by eosin or other acid dyes. Also called eosinophilic leukocyte, oxyphil, oxyphilic leukocyte.
A microorganism, cell, or histological element easily stained by eosin or other acid dyes.