prophylactic vs contraceptive

prophylactic and contraceptive both are nouns.

Word	Noun	Adjective	Verb	Adverb
prophylactic	Yes	Yes	No	No
contraceptive	Yes	Yes	No	No

As adjectives, prophylactic and contraceptive are synonyms defined as:

prophylactic and contraceptive: capable of preventing conception or impregnation

Other synonyms of prophylactic include antifertility.

As nouns, contraceptive is a hypernym of prophylactic; that is, contraceptive is a word with a broader meaning than prophylactic:

prophylactic: contraceptive device consisting of a sheath of thin rubber or latex that is worn over the penis during intercourse
contraceptive: an agent or device intended to prevent conception

prophylactic (noun)	contraceptive (noun)
contraceptive device consisting of a sheath of thin rubber or latex that is worn over the penis during intercourse	an agent or device intended to prevent conception
remedy that prevents or slows the course of an illness or disease

prophylactic (adjective)	contraceptive (adjective)
preventing or contributing to the prevention of disease	capable of preventing conception or impregnation
warding off
capable of preventing conception or impregnation