abnormal granulocyte physiology abnormal eosinophil physiology MP:0002465 MPheno.ontology abnormal eosinocyte physiology abnormal eosinophilic leucocyte physiology abnormal eosinophilic leukocyte physiology abnormal polymorphonuclear leucocyte physiology abnormal polymorphonuclear leukocyte physiology any functional anomaly of the immature or mature forms of a granular leukocyte with a nucleus that usually has two lobes connected by one or more slender threads of chromatin, and cytoplasm containing coarse, round granules that are uniform in size and which can be stained by the dye eosin and is involved in clearance of parasitic infections and in allergic reactions eosinophil dysfunction