operating surgeon vs medico

operating surgeon and medico both are nouns.

Word	Noun	Adjective	Verb	Adverb
operating surgeon	Yes	No	No	No
medico	Yes	No	No	No

As nouns, medico is a hypernym of operating surgeon; that is, medico is a word with a broader meaning than operating surgeon:

Other hypernyms of operating surgeon include doc, doctor, Dr., MD, physician.

operating surgeon (noun)	medico (noun)
a physician who specializes in surgery	a licensed medical practitioner
	a student in medical school