leukemia

noun

leu·​ke·​mia lü-ˈkē-mē-ə How to pronounce leukemia (audio)
: 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
leukemic adjective or noun

Examples of leukemia in a Sentence

Recent Examples on the Web
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Since then, research has shown that stem cell transplantation can be a safe and effective treatment for blood cancers — leukemia, lymphoma and myeloma — and certain non-cancerous blood disorders. Hanna Wickes, Miami Herald, 27 May 2026 Since then, research has shown stem cell transplantation can be a safe and effective treatment for blood cancers — leukemia, lymphoma and myeloma — as well as certain non-cancerous blood disorders. Hanna Wickes, Fort Worth Star-Telegram, 27 May 2026 In January 2024, Lola was diagnosed with leukemia after her parents initially mistook bruises appearing across her body for childhood clumsiness. Jordan Greene, PEOPLE, 25 May 2026 Manuel Gines’ youngest brother, Frederick Gines, died of leukemia in 1963 at 14. Graham Womack, Sacbee.com, 24 May 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 31 May. 2026.

Kids Definition

leukemia

noun
leu·​ke·​mia lü-ˈkē-mē-ə How to pronounce leukemia (audio)
: 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
leukemic adjective

Medical Definition

leukemia

noun
leu·​ke·​mia lü-ˈkē-mē-ə How to pronounce leukemia (audio)
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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