Birth control pill and Birth control device

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

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

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

Birth control pill and birth control device are semantically related. Sometimes you can replace phrase "Birth control pill" with "Birth control device", this phrases are similar.