a small soluble block that is inserted into the vagina to treat infection or as a contraceptive (治疗炎症或避孕用的)阴道栓剂,膈状子宫托,子宫帽 ■an elastic or rigid device that is inserted into the vagina to support the uterus (支托用)子宫托
语源
late Middle English: from late Latin pessarium, based on Greek pessos 'oval stone' (used in board games)