: an acute or chronic disease in humans and other warm-blooded animals characterized by an abnormal increase in the number of white blood cells in the tissues and often in the blood

Examples of leukemia in a Sentence

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Parton then shared that her niece had battled leukemia as a child and survived, giving her an immediate personal connection to Pearl Monroe’s experience. Jordan Greene, PEOPLE, 4 Sep. 2026 Senior kicker Nate McCashland understands what the Goggins family is going through, with his younger brother having leukemia at a young age, and talked about how inspiring Heston is. Lawrence Dow, Fort Worth Star-Telegram, 4 Sep. 2026 Trejo Ricano was held at the Stewart Detention Center in Georgia, while suffering from leukemia. Vanessa Romo, NPR, 2 Sep. 2026 In 1970, the fourth King sibling, Irene, died of leukemia, at sixteen years old. Laura Preston, New Yorker, 30 Aug. 2026 See All Example Sentences for leukemia

Word History

Etymology

New Latin

First Known Use

1850, in the meaning defined above

Time Traveler
The first known use of leukemia was in 1850

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Cite this Entry

“Leukemia.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/leukemia. Accessed 9 Sep. 2026.

Kids Definition

: a disease of warm-blooded animals including human beings that is a kind of cancer in which there is an abnormal increase in the number of white blood cells in the tissues and often in the blood

Medical Definition

variants also leucemia
lü-ˈkē- also lü-ˈsē-
or chiefly British leukaemia also leucaemia
: an acute or chronic disease of unknown cause in humans and other warm-blooded animals that involves the blood-forming organs, is characterized by an abnormal increase in the number of white blood cells in the tissues of the body with or without a corresponding increase of those in the circulating blood, and is classified according to the type of white blood cell most prominently involved see acute lymphoblastic leukemia, acute myelogenous leukemia, chronic lymphocytic leukemia, chronic myelogenous leukemia, feline leukemia, lymphoblastic leukemia, lymphocytic leukemia, monocytic leukemia, myelogenous leukemia, promyelocytic leukemia

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