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 cellExamples of white blood cell in a Sentence
Recent Examples on the Web
Researchers hypothesize that white blood cells called macrophages—which normally engulf and destroy invading pathogens—aren't able to finish the job.
—
ArsTechnica, 11 July 2025
It is designed to specifically target and destroy cancerous tumors while also stimulating the body's white blood cells to seek and destroy other cancer cells across the entire body.
—Ian Randall, MSNBC Newsweek, 9 July 2025
Blood work showed the presence of eosinophils — a type of white blood cell that fights parasitic infections.
—Cara Lynn Shultz, People.com, 2 July 2025
Together, these nutrients support the development of a strong immune system by regenerating and increasing your white blood cells, which defend the body against bacteria, viruses, and free radicals (chemicals that can potentially damage cells).2
2.
—Anna Giorgi, Verywell Health, 31 Mar. 2025
See All Example Sentences for white blood cell
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.
ArsTechnica, 11 July 2025
It is designed to specifically target and destroy cancerous tumors while also stimulating the body's white blood cells to seek and destroy other cancer cells across the entire body.
—Ian Randall, MSNBC Newsweek, 9 July 2025
Blood work showed the presence of eosinophils — a type of white blood cell that fights parasitic infections.
—Cara Lynn Shultz, People.com, 2 July 2025
Together, these nutrients support the development of a strong immune system by regenerating and increasing your white blood cells, which defend the body against bacteria, viruses, and free radicals (chemicals that can potentially damage cells).2
2.
—Anna Giorgi, Verywell Health, 31 Mar. 2025
See All Example Sentences for white blood cell
Cite this Entry
“White blood cell.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/white%20blood%20cell. Accessed 21 Jul. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share