eo·sin·o·phil \ˌēəˈsinəˌfil\noun oreo·sin·o·phile\-fīl\ (-s) Etymology:eosin- + -o- + -phil, -phile : a leukocyte or other granulocyte with cytoplasmic inclusions readily stained by eosin — called also acidophile • eo·sin·o·phil·ic\-|sinə|filik\adjective