Noun
an abnormal lowering of the white blood cell count
Source: WordNetAlso, bone marrow depression (inducing leukopenia and thrombocytopenia), and acute kidney and liver failure have been reported. Source: Internet
A decrease in the number of circulating white blood cells ( leukopenia ) occurs with eosinopenia and relative lymphocytosis ; blood cultures are positive for Salmonella typhi or S. paratyphi. Source: Internet