aviation medicine vs aeromedicine

aviation medicine and aeromedicine both are nouns.

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

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

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

Other synonyms of aviation medicine include aerospace medicine.

aviation medicine (noun)	aeromedicine (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)