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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Schleicher was officially diagnosed with T-cell acute lymphoblastic leukemia on July 28, 2025 – four months after her original visit with her primary care physician. Tereza Shkurtaj, PEOPLE, 18 Oct. 2025 Based on the excellent 1990 play of the same name, this drama stars Keaton as a woman dying of leukemia in a film that also features Meryl Streep and Robert De Niro. Brian Tallerico, Vulture, 14 Oct. 2025 Their discovery could pave the way to simulate blood disorders like leukemia and produce long-lasting stem cells for transplants. Neetika Walter, Interesting Engineering, 14 Oct. 2025 The 8-year-old boy had been battling acute promyelocytic leukemia, his family announced in July. Ryan Gaydos, FOXNews.com, 13 Oct. 2025 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 23 Oct. 2025.

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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