white blood cell

noun

: any of the blood cells that are colorless, lack hemoglobin, contain a nucleus, and include the lymphocytes, monocytes, neutrophils, eosinophils, and basophils

called also leukocyte, white blood corpuscle, white cell

compare red blood cell

Examples of white blood cell 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.
How did nobody catch a high white blood cell count? Mekishana Pierre, EW.com, 6 Aug. 2025 Cancerous plasma cells reduce the production of the white blood cells that support your immune system. Anna Giorgi, Verywell Health, 22 July 2025 Now that his pitching career no longer has to take a back seat to his health, Hess can focus more on his speed and spin rate than his white blood cell count. Jon Paul Hoornstra, MSNBC Newsweek, 14 July 2025 Researchers have long known that the amoebiasis parasite can kill white blood cells to evade the immune system. Jay Kakade may 24, New Atlas, 24 May 2025 See All Example Sentences for white blood cell

Word History

First Known Use

1852, in the meaning defined above

Time Traveler
The first known use of white blood cell was in 1852

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Cite this Entry

“White blood cell.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/white%20blood%20cell. Accessed 20 Aug. 2025.

Kids Definition

white blood cell

noun
: a colorless blood cell (as a lymphocyte) that lacks hemoglobin and contains a nucleus

called also leukocyte, white blood corpuscle, white cell, white corpuscle

Medical Definition

white blood cell

noun
: any of the blood cells of the immune system that are colorless, lack hemoglobin, contain a nucleus, and include the lymphocytes, monocytes, neutrophils, eosinophils, and basophils along with their precursors and derivatives (as macrophages) : leukocyte
abbreviation WBC

called also white blood corpuscle, white cell, white corpuscle

compare red blood cell

More from Merriam-Webster on white blood cell

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