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.
Considered a type of Non-Hodgkin lymphoma, the condition converts some white blood cells into cancerous ones, according to the Mayo Clinic. Anna Kaufman, USA Today, 17 Apr. 2025 Vaccines work by introducing antigens that mimic a pathogen, triggering lymphocytes (a type of white blood cell) to produce antibodies. Jenny Lehmann, Discover Magazine, 24 Feb. 2025 During the blood’s sojourn on the rack, white blood cells are filtered out. Nicola Twilley, The New Yorker, 3 Feb. 2025 The research started back in 2017 where the team found HSCs in the lungs of mice which were capable of making red blood cells, as well as white blood cells which help with fighting infections and healing and also cells which produce platelets. Victoria Forster, Forbes, 15 Mar. 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 28 Apr. 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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