follow Dictionary.com

What's the "een" in Halloween?

platelet

[pleyt-lit] /ˈpleɪt lɪt/
noun, Cell Biology
1.
a small platelike body, especially a blood platelet.
Origin
1890-1895
1890-95; plate1 + -let
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source
Examples from the web for platelet
  • These produce molecules called platelet-derived growth factors that are capable of switching on dormant follicles.
  • Red and white blood cell counts and platelet counts may be low.
British Dictionary definitions for platelet

platelet

/ˈpleɪtlɪt/
noun
1.
a minute cell occurring in the blood of vertebrates and involved in clotting of the blood Formerly called thrombocyte
Word Origin
C19: a small plate
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source
Word Origin and History for platelet
n.

1895, formed in English from plate + diminutive suffix -let.

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
platelet in Medicine

platelet plate·let (plāt'lĭt)
n.
A minute, irregularly shaped, disklike cytoplasmic body found in blood plasma that promotes blood clotting and has no definite nucleus, no DNA, and no hemoglobin. Also called blood platelet, thrombocyte.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
platelet in Science
platelet
  (plāt'lĭt)   
Any of the numerous small, round cell fragments found in the blood of mammals that function in the clotting of blood. Platelets contain no nuclei and are formed in the bone marrow from precursor cells called megakaryocytes. Platelets contribute to the coagulation process by adhering to damaged blood vessels, fibrinogen, and other platelets. An inadequate number of platelets leads to uncontrolled bleeding.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source

Word of the Day

Difficulty index for platelet

Some English speakers likely know this word

Word Value for platelet

10
13
Scrabble Words With Friends

Nearby words for platelet