英语释义
1. a device inserted into and left in the uterus to prevent effective conception — called also intrauterine contraceptive device, IUD
2. a device that is inserted in the uterus and left there to prevent pregnancy
3. a usually T-shaped, plastic device that is inserted into and left in the uterus for an extended time (as five years) to prevent effective conception Note: The intrauterine device typically contains a progestin (as levonorgestrel) or has copper wire wound around the arms and vertical stem of the "T." — called also IUCD, IUD