platelet

noun

plate·​let ˈplāt-lət How to pronounce platelet (audio)
: a minute flattened body (as of ice or a mineral)
especially : a minute colorless disklike body of mammalian blood that assists in blood clotting by adhering to other platelets and to damaged epithelium

called also blood platelet, thrombocyte

Examples of platelet in a Sentence

Recent Examples on the Web Genesis received intravenous fluids in the hospital, and her platelet count gradually trended up. Sarah Kaplan, Washington Post, 30 June 2024 Reducing clotting activity is a key treatment used by cardiologists, so any additional clotting in platelets is a bad sign, said Dr. Andrew Freeman, director of cardiovascular prevention and wellness at National Jewish Health in Denver. Sandee Lamotte, CNN, 6 June 2024 But that’s not all: E. coli infections may also cause hemolytic uremic syndrome (HUS), which, according to Gounder, is characterized by damage to blood vessels, blood clots, and kidney failure, accompanied by a drop in both red cells and platelets. Elizabeth Yuko, Rolling Stone, 19 June 2024 In each of the tests, xylitol increased how quickly platelets formed blood clots, which could eventually lead to a heart attack or stroke. Becky Upham, EverydayHealth.com, 13 June 2024 See all Example Sentences for platelet 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'platelet.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1888, in the meaning defined above

Time Traveler
The first known use of platelet was in 1888

Dictionary Entries Near platelet

Cite this Entry

“Platelet.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/platelet. Accessed 15 Jul. 2024.

Kids Definition

platelet

noun
plate·​let ˈplāt-lət How to pronounce platelet (audio)
: one of the tiny colorless disk-shaped bodies of the blood of mammals that assist in blood clotting

Medical Definition

platelet

noun
plate·​let ˈplāt-lət How to pronounce platelet (audio)
: a minute colorless anucleate disklike body of mammalian blood that is derived from fragments of megakaryocyte cytoplasm, that is released from the bone marrow into the blood, and that assists in blood clotting by adhering to other platelets and to damaged epithelium

called also blood platelet, thrombocyte

More from Merriam-Webster on platelet

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