eosinophil
Variant: eosinophile
[ eosin + -phile ]
ABBR: EO
A white blood cell with a lobed nucleus and cytoplasmic granules that stain red with Wright stain. Eosinophils make up 1% to 3% of the white cell count. They contribute to the destruction of parasites and to allergic reactions by releasing chemical mediators such as histamine.
SYN: acidophilic leukocyte ; eosinophilic leukocyte .