Birth control pill and Cervical cap

Birth control pill noun - A contraceptive in the form of a pill containing estrogen and progestin to inhibit ovulation and so prevent conception.

Cervical cap and birth control pill are semantically related. In some cases you can use "Cervical cap" instead a noun phrase "Birth control pill".

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