agranulocytosis

noun

: an acute febrile condition marked by severe decrease in blood granulocytes and often associated with the use of certain drugs

Examples of agranulocytosis 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.
To prevent and rapidly address cases of agranulocytosis, the FDA requires clozapine’s manufacturers to jointly administer the clozapine REMS program. — Brian Barnett, STAT, 9 May 2022 The drug may cause agranulocytosis, a dangerous lowering of white blood cells that puts patients at risk of serious infections, according to Berman. — Bloomberg.com, 29 Nov. 2017 Along with hypothyroid conditions, perchlorate has also been implicated in aplastic anemia and agranulocytosis, conditions characterized by a life-threatening deficiency of blood cells. — David Warmflash, Discover Magazine, 20 June 2016

Word History

Etymology

borrowed from German Agranulozytose, from a- a- entry 2 + Granulozyt granulocyte + -ose -osis

First Known Use

1922, in the meaning defined above

Time Traveler
The first known use of agranulocytosis was in 1922

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Cite this Entry

“Agranulocytosis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/agranulocytosis. Accessed 5 Oct. 2026.

Medical Definition

agranulocytosis

noun
: an acute blood disorder that is marked by a decrease of circulating granulocytes (such as neutrophils) and is characterized especially by weakness, chills, swollen neck, sore throat, mouth ulcers, and jaundice

Note: Agranulocytosis results from a decline in the production of granulocytes or from granulocyte destruction. It is typically an acquired condition occurring as a side effect of certain drugs or chemotherapy or sometimes as a complication of various medical conditions (such as infection, autoimmune disease, or aplastic anemia).

called also agranulocytic angina, granulocytopenia

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