eosinophilicPronunciation: /ˌiːə(ʊ)ˌsɪnəˈfɪlɪk/Definition of eosinophilic adjective 1 Physiology (of a cell or its contents) readily stained by eosin. 2 Medicine relating to or marked by eosinophilia. eosinophilic in other Oxford dictionaries Definition of eosinophilic in the US English dictionary