extern vs medical extern

extern and medical extern both are nouns.

Word	Noun	Adjective	Verb	Adverb
extern	Yes	No	No	No
medical extern	Yes	No	No	No

As nouns, extern and medical extern are synonyms defined as:

extern and medical extern: a nonresident doctor or medical student; connected with a hospital but not living there

extern (noun)	medical extern (noun)
a nonresident doctor or medical student; connected with a hospital but not living there	a nonresident doctor or medical student; connected with a hospital but not living there