plasma cell

noun

: a lymphocyte that is a mature antibody-secreting B cell

Examples of plasma cell in a Sentence

Recent Examples on the Web
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The documentary marked the first time Scialfa publicly addressed getting diagnosed with multiple myeloma, a cancer of plasma cells, which are found in the bone marrow and are an important part of the immune system, according to the American Cancer Society. Daniela Avila, People.com, 25 July 2025 With a transplant, a patient is bombarded with high-dose chemotherapy to kill the cancerous plasma cells. David Armstrong, CNN Money, 10 May 2025 Your immune system forms memory cells to remember what to do with each thing and plasma cells to quickly secrete antibodies specifically against things that were recognized as bad. Bruce Y. Lee, Forbes, 15 Mar. 2025 Measles targets cells in the body, such as plasma cells and memory cells, that contain those immunologic memories, destroying some of them in the process. Akshay Syal, M.d., NBC News, 12 Mar. 2025 See All Example Sentences for plasma cell

Word History

First Known Use

1895, in the meaning defined above

Time Traveler
The first known use of plasma cell was in 1895

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Cite this Entry

“Plasma cell.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/plasma%20cell. Accessed 19 Aug. 2025.

Medical Definition

plasma cell

noun
: a lymphocyte that is a mature antibody-secreting B cell

More from Merriam-Webster on plasma cell

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