Definition of hydroxyurea
: a drug CH4N2O2 used to treat some forms of leukemia, melanoma, and malignant tumors
First Known Use of hydroxyurea
Medical Definition of hydroxyurea
: an antineoplastic drug CH4N2O2 used especially to treat myeloproliferative disorders (as chronic myelogenous leukemia, polycythemia vera, and thrombocythemia) and malignant tumors
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