leukemia
noun
leu·ke·mia
lü-ˈkē-mē-ə 
: 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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Kevin Liu was diagnosed with acute lymphoblastic leukemia, which spread to his brain, in 2022.
—
Michelle Lee, PEOPLE, 29 Apr. 2026
One of the best ways to control feline leukemia and feline immunosuppressive virus in community cats is to spay and neuter them.
—Rashad Williams, CBS News, 22 Apr. 2026
Acute lymphoblastic leukemia is among the most common childhood cancers and is considered highly curable, Kevin said the treatment process is a long one and Grayson still has another two to three years to go.
—Karen Billing, San Diego Union-Tribune, 21 Apr. 2026
The singer goes on to retell one of the several accusations Cronin, who died in 2010 at 36 from leukemia, made against Pearlman on The Howard Stern Show in 2009.
—Joyce Eng, Entertainment Weekly, 8 Apr. 2026
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Michelle Lee, PEOPLE, 29 Apr. 2026
One of the best ways to control feline leukemia and feline immunosuppressive virus in community cats is to spay and neuter them.
—Rashad Williams, CBS News, 22 Apr. 2026
Acute lymphoblastic leukemia is among the most common childhood cancers and is considered highly curable, Kevin said the treatment process is a long one and Grayson still has another two to three years to go.
—Karen Billing, San Diego Union-Tribune, 21 Apr. 2026
The singer goes on to retell one of the several accusations Cronin, who died in 2010 at 36 from leukemia, made against Pearlman on The Howard Stern Show in 2009.
—Joyce Eng, Entertainment Weekly, 8 Apr. 2026
See All Example Sentences for leukemia
Cite this Entry
“Leukemia.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/leukemia. Accessed 1 May. 2026.
Copy CitationKids Definition
leukemia
noun
leu·ke·mia
lü-ˈkē-mē-ə
: 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
leukemia
noun
leu·ke·mia
lü-ˈkē-mē-ə
variants
also leucemia
or chiefly British leukaemia
also leucaemia
lü-ˈkē- also lü-ˈsē-
: 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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