birth control device vs prophylactic device

birth control device and prophylactic device both are nouns.

Word	Noun	Adjective	Verb	Adverb
birth control device	Yes	No	No	No
prophylactic device	Yes	No	No	No

As nouns, birth control device and prophylactic device are synonyms defined as:

birth control device and prophylactic device: an agent or device intended to prevent conception

Other synonyms of birth control device include contraceptive, contraceptive device, preventative, preventive.

birth control device (noun)	prophylactic device (noun)
an agent or device intended to prevent conception	an agent or device intended to prevent conception