/klɒt ||; klɑt/noun [C] a lump formed by blood as it dries (凝结的)血块: They removed a blood clot from his brain.他们清除了他脑部的血块。
clot²
/klɒt ||; klɑt/verb [I,T] (clotting;clotted) to form or cause blood to form thick lumps (使)结成血块: a drug that stops blood from clotting during operations一种防止血液在手术过程中凝固的药