aerospace medicine vs aviation medicine

aerospace medicine and aviation medicine both are nouns.

Word	Noun	Adjective	Verb	Adverb
aerospace medicine	Yes	No	No	No
aviation medicine	Yes	No	No	No

As nouns, aerospace medicine and aviation medicine are synonyms defined as:

aerospace medicine and aviation medicine: the study and treatment of disorders associated with flight (especially with space flight)

Other synonyms of aerospace medicine include aeromedicine.

aerospace medicine (noun)	aviation medicine (noun)
the study and treatment of disorders associated with flight (especially with space flight)	the study and treatment of disorders associated with flight (especially with space flight)