Birth control device and Cervical cap

Birth control device noun - An agent or device intended to prevent conception.

Cervical cap and birth control device are semantically related. In some cases you can replace phrase "Cervical cap" with "Birth control device", this phrases are similar.

Cervical cap noun - A contraceptive device consisting of a small thimble-shaped cup that is placed over the uterine cervix to prevent the entrance of spermatozoa.

Birth control device and cervical cap are semantically related. You can use "Birth control device" instead a noun phrase "Cervical cap".