a piece of cloth, etc. that is tied tightly around an arm or a leg to stop the loss of blood from a wound （扎在手臂或腿上的）止血带 Apply a tight tourniquet above the wound. 在伤口上方使用紧的止血带。
Word Originlate 17th cent.: from French, probably from Old French tournicle ‘coat of mail’, influenced by tourner ‘to turn’.