granulocyte morphology trait eosinophil morphology trait Any measurable or observable characteristic related to the shape, structure, color, or pattern of the immature or mature form 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; involved in clearance of parasitic infections and in allergic reactions. EFO:0803540 Trait.ontology VT:0005061 eosinocyte morphology trait eosinophilic leucocyte morphology trait eosinophilic leukocyte morphology trait polymorphonuclear leucocyte morphology trait polymorphonuclear leukocyte morphology trait