tiny bits of protoplasm found in vertebrate blood; essential for blood clotting
同义词：blood platelet, thrombocyte
platelet详细解释
plate.let n.（名词）A minute, disklike cytoplasmic body found in the blood plasma of mammals that promotes blood clotting.Also called blood platelet ,thrombocyte 血小板：在哺乳动物的血浆中发现的能促进血液凝固的微小的，圆盘状的细胞质个体也作 blood platelet,thrombocyte
