pessary

名词 pessary:

1. a contraceptive device consisting of a flexible dome-shaped cup made of rubber or plastic; it is filled with spermicide and fitted over the uterine cervix
   同义词：diaphragm, contraceptive diaphragm

pes.sa.ry

n.（名词）
【复数】 pes.sa.ries
Any of various devices worn in the vagina to support or correct the position of the uterus or rectum.
子宫托，子宫套：一种置于阴道内支撑或纠正子宫或直肠位置的装置
A contraceptive diaphragm.
避孕膜
A medicated vaginal suppository.
（一种药物）阴道栓剂

来源：
Middle English pessarie
中古英语 pessarie
from Late Latin pess3rium
源自 后期拉丁语 pess3rium
from pessus, pessum
源自 pessus, pessum
from Greek pessos [oval-shaped stone, pessary]
源自 希腊语 pessos [椭圆形石头，子宫套]