柯林斯詞典platelet /?ple?tl?t/ (platelets) 1. N-COUNT Platelets are a kind of blood cell. If you cut yourself and you are bleeding, platelets help to stop the bleeding. 血小板[技術] [usu pl] 返回 platelet劍橋詞典a very small cell in the blood that makes it thicker and more solid in order to stop bleeding caused by an injury 血小板 返回 platelet