: a granulocyte that occurs especially in connective tissue and has basophilic granules containing substances (such as histamine and heparin) which mediate allergic reactions
Examples of mast cell in a Sentence
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At the heart of these symptoms is a powerful—but often overlooked—player in the immune system: the mast cell.
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John W. Dean, MSNBC Newsweek, 6 Apr. 2025
Chemotherapy or stem cell transplant: Used in severe cases like mast cell leukemia.7
Systemic Mastocytosis Triggers
Mastocytosis can worsen due to triggers that prompt mast cells to release histamine and other chemicals.
—Sarah Jividen, Verywell Health, 15 July 2024
Scratching promotes allergic inflammation and host defense via neurogenic mast cell activation
Avery Hurt is a freelance science journalist.
—Avery Hurt, Discover Magazine, 29 Mar. 2025
The activation of mast cells can frequently lead to inflammation and the itch response thanks to their recruitment of neutrophils, a type of white blood cell also involved with the body's immune response.
—Michael Franco, New Atlas, 31 Jan. 2025
See All Example Sentences for mast cell
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John W. Dean, MSNBC Newsweek, 6 Apr. 2025
Chemotherapy or stem cell transplant: Used in severe cases like mast cell leukemia.7
Systemic Mastocytosis Triggers
Mastocytosis can worsen due to triggers that prompt mast cells to release histamine and other chemicals.
—Sarah Jividen, Verywell Health, 15 July 2024
Scratching promotes allergic inflammation and host defense via neurogenic mast cell activation
Avery Hurt is a freelance science journalist.
—Avery Hurt, Discover Magazine, 29 Mar. 2025
The activation of mast cells can frequently lead to inflammation and the itch response thanks to their recruitment of neutrophils, a type of white blood cell also involved with the body's immune response.
—Michael Franco, New Atlas, 31 Jan. 2025
See All Example Sentences for mast cell
Cite this Entry
“Mast cell.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mast%20cell. Accessed 4 Jun. 2025.
Copy CitationMedical Definition
mast cell
noun
: a granulocyte that occurs especially in connective tissue and has basophilic granules containing substances (as histamine and heparin) which mediate allergic reactions
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