platelet

plate·let   (plāt'lĭt)    n.  A minute, nonnucleated, disklike cytoplasmic body found in the blood plasma of mammals that is derived from a megakaryocyte and functions to promote blood clotting. Also called blood platelet, thrombocyte.

platelet 

Main Entry: plate·let
Pronunciation: 'plAt-l&t
Function: noun
: a minute colorless anucleate disklike body of mammalian blood that is derived fromfragments 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 alsoblood platelet, thrombocyte

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.

platelet   (plāt'lĭt)  Pronunciation Key  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.