: 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
Recent Examples on the Web
In this condition, the body makes too many mast cells, a type of immune cell that triggers inflammation.
—
Sarah Hudgens, Health, 20 Dec. 2024
Ultimately, her research led to mast cell activation syndrome, or MCAS, a condition in which mast cells (a type of white blood cell) overreact for reasons that aren’t always clear.
—Erica Sloan, SELF, 3 Dec. 2024
When your immune system detects an allergen, mast cells release histamine and other chemicals that cause your blood vessels to become a bit leaky.
—Katie Camero, SELF, 23 Oct. 2024
Antihistamines, mast cell stabilizers, and prescription eyedrops containing steroids can treat eye burning.
—Lindsay Curtis, Health, 4 Sep. 2024
See all Example Sentences for mast 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.
Sarah Hudgens, Health, 20 Dec. 2024
Ultimately, her research led to mast cell activation syndrome, or MCAS, a condition in which mast cells (a type of white blood cell) overreact for reasons that aren’t always clear.
—Erica Sloan, SELF, 3 Dec. 2024
When your immune system detects an allergen, mast cells release histamine and other chemicals that cause your blood vessels to become a bit leaky.
—Katie Camero, SELF, 23 Oct. 2024
Antihistamines, mast cell stabilizers, and prescription eyedrops containing steroids can treat eye burning.
—Lindsay Curtis, Health, 4 Sep. 2024
See all Example Sentences for mast cell
Dictionary Entries Near mast cell
Cite this Entry
“Mast cell.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mast%20cell. Accessed 26 Dec. 2024.
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
Love words? Need even more definitions?
Merriam-Webster unabridged
Share