Noun: platelet pleyt-lut
- Tiny particle of protoplasm found in vertebrate blood; essential for blood clotting
"Platelets rush to the site of a wound to help form a clot"; "Blood platelets rush to the site of an injury to begin the clotting process";
- blood platelet, thrombocyte
Derived forms: platelets
Type of: living substance, protoplasm
Encyclopedia: Platelet