platelet

noun
plate·​let | \ ˈplāt-lət \

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

Examples of platelet in a Sentence

Recent Examples on the Web

That includes drawing stem cells from my fat and bone marrow and re-injecting them into my shoulder plus 2-3 rounds of platelet rich plasma (PRP). Scott Tinley, SI.com, "A firsthand experience with stem cell treatment in pitching arm," 3 Aug. 2011 The facial involves drawing blood from a vein in your arm, which is then run through a centrifuge to extract the platelets, according to Allure. Candace Braun Davison, House Beautiful, "Tarek El Moussa Tries Out The Vampire Facial Trend, And You Can't Unsee The Results," 9 Oct. 2018 The results of blood work taken during a routine physical showed that Park's platelets (cells that help clot the blood) were very low. Amy Capetta, Good Housekeeping, "Bosch's Linda Park on What It's Really Like to Live With Lupus," 31 July 2017 According to Allure, the facial then starts with a round of microdermabrasion before that plasma (known as PRP, or platelet-rich plasma) is applied back to your face in mask-form. Emma Sarran Webster, Teen Vogue, "New Mexico Department of Health Claims Vampire Facials at One Spa May Have Exposed Clients to Blood-Borne Infections," 14 Sep. 2018 Supposedly, the platelet-rich plasma (PRP) moisturizer is thought to reduce inflammation and stimulate tissue healing, though no mass studies have been conducted to test those claims. Chloe Metzger, Marie Claire, "Hailey Baldwin Uses a Face Moisturizer Filled With Her Own Blood," 17 Sep. 2018 The resulting liquid is called platelet-rich plasma, or PRP. Rebecca Jennings, Vox, "“Vampire facials” are massively popular. And — surprise! — potentially dangerous.," 14 Sep. 2018 A few hours after the shooting, the Gulf Coast Regional Blood Center posted on Facebook that area facilities were requesting more platelets and O-negative red cells. Emilie Ikeda, Fox News, "Texas blood center opens extra locations amid high demand to give blood," 19 May 2018 The results showed that Tazmin had a low-platelet disorder. Lindsey Bever, Washington Post, "A mother Googled her toddler’s symptoms — and believes it may have saved the child’s life," 24 Feb. 2018

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.

See More

First Known Use of platelet

1888, in the meaning defined above

Keep scrolling for more

Learn More about platelet

Statistics for platelet

Look-up Popularity

Time Traveler for platelet

The first known use of platelet was in 1888

See more words from the same year

Keep scrolling for more

More Definitions for platelet

platelet

noun

English Language Learners Definition of platelet

: a small, round, thin blood cell that helps blood to stop flowing from a cut by becoming thick and sticky

platelet

noun
plate·​let | \ ˈplāt-lət \

Kids Definition of platelet

: one of the tiny colorless disk-shaped bodies of the blood that assist in blood clotting

platelet

noun
plate·​let | \ ˈplāt-lət \

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

More from Merriam-Webster on platelet

Britannica English: Translation of platelet for Arabic Speakers

Britannica.com: Encyclopedia article about platelet

Comments on platelet

What made you want to look up platelet? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

excited commotion or publicity

Get Word of the Day daily email!

Test Your Vocabulary

What did you just call me?! A Quiz

  • rows-of-various-emoji
  • If a member of the audience describes your speech as bombastic, does that person mean it is:
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!