: a drug CH4N2O2 used especially to treat myeloproliferative disorders (such as polycythemia vera and myelogenous leukemia) and malignant tumors

Examples of hydroxyurea in a Sentence

Recent Examples on the Web
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Many receive doses of hydroxyurea, a drug that can reduce periods of severe pain and other complications, and researchers there are studying its effectiveness in Ugandan children. Nabulo, now 37, is one of the hospital’s patients. Rodney Muhumuza, San Diego Union-Tribune, 11 May 2024 Take hydroxyurea, an oral drug that makes red blood cells more flexible, reducing pain crises and the need for blood transfusions. Megan Molteni, STAT, 7 Mar. 2023

Word History

First Known Use

1949, in the meaning defined above

Time Traveler
The first known use of hydroxyurea was in 1949

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Cite this Entry

“Hydroxyurea.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hydroxyurea. Accessed 9 Apr. 2025.

Medical Definition

hydroxyurea

noun
: 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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