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From Biology-Online Dictionary | Biology-Online Dictionary
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An increase in the number of circulating eosinophils in the blood.


Eosinophilia is a type of leukocytosis involving the eosinophils. Parasitic infection is an example in which eosinophilia is observed.

Word origin: eosinophil + Greek philein (to love).

Compare: eosinopenia.
See also: lymphocytosis, monocytosis, neutrophilia, basophilia.