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Pronunciation: ā-lū-kō-sī-tō′sis

Definition: Absence or great reduction (relative or absolute) of the number of leukocytes in the circulating blood (an advanced degree of leukopenia), or the lack of leukocytes in an anatomic lesion.

[G. a- priv. + leukos, white, + kytos, a hollow (cell)]

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