Blood cells that help prevent bleeding by causing blood clots to form. Also called platelets.
Microscopic particles involved in the clotting process to help control bleeding; platelets.
Biology Dictionary
Definition:
A particle found in the bloodstream that binds to fibrinogen at the site of a wound to begin the blood clotting process. Platelets are formed in bone marrow, where they arise from cells called megakaryocytes.
Medical Dictionary