linguistic scientist vs linguist

linguistic scientist and linguist both are nouns.

Word	Noun	Adjective	Verb	Adverb
linguistic scientist	Yes	No	No	No
linguist	Yes	No	No	No

As nouns, linguistic scientist and linguist are synonyms defined as:

linguistic scientist (noun)	linguist (noun)
a specialist in linguistics	a person who speaks more than one language
	a specialist in linguistics