Definition of platelet
: 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
Recent Examples of platelet from the Web
The under-surface is covered in jagged ice crystals called platelet ice.
Dermatologists might also use platelet-rich plasma (PRP), a special wound healing serum, or a hyaluronic acid-vitamin C compound to help with hyperpigmentation, especially in darker skin tones.
Harvey had a platelet-rich plasma injection at the Hospital for Special Surgery on Thursday, a day after his fastball averaged 91.8 mph against the Chicago Cubs, down from 94-96.5 mph in his previous starts this season, according to Brooks Baseball.
Blood is composed of plasma, red cells, white blood cells and platelets.
Utility man Ryan Flaherty, who received a platelet-rich-plasma injection for a right shoulder strain, has been cleared to resume throwing by team physician Dr. Mike Jacobs.
Platelets that are missing glycoprotein VI do not form blood clots and do not lead to severe bleeding.
The giving process involves taking bone marrow from the iliac crest of the hipbone while the donor is under anesthesia or collecting peripheral blood stem cells in a process similar to donating blood platelets.
Left-hander Wei-Yin Chen received a platelet-rich plasma injection this week, said manager Don Mattingly, who didn’t know of a timetable for Chen’s eventual return.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'platelet.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use of platelet
PLATELET Defined for English Language Learners
Definition of platelet for English Language Learners
: a small, round, thin blood cell that helps blood to stop flowing from a cut by becoming thick and sticky
PLATELET Defined for Kids
Definition of platelet for Students
: one of the tiny colorless disk-shaped bodies of the blood that assist in blood clotting
Medical Definition of platelet
: 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
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