coil, contraceptive

coil, contraceptive

A plastic or metal device worn semi-permanently in the womb which acts to prevent implantation of the fertilized ovum, probably by inducing a low-grade local inflammation. One of several forms of intra-uterine contraceptive device (IUCD/IUD). See also CONTRACEPTION.

Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005