metallurgist vs engineer

metallurgist and engineer both are nouns.

Word	Noun	Adjective	Verb	Adverb
metallurgist	Yes	No	No	No
engineer	Yes	No	Yes	No

As nouns, engineer is a hypernym of metallurgist; that is, engineer is a word with a broader meaning than metallurgist:

metallurgist: an engineer trained in the extraction and refining and alloying and fabrication of metals
engineer: a person who uses scientific knowledge to solve practical problems

Other hypernyms of metallurgist include applied scientist, technologist.

metallurgist (noun)	engineer (noun)
an engineer trained in the extraction and refining and alloying and fabrication of metals	a person who uses scientific knowledge to solve practical problems
	the operator of a railway locomotive

metallurgist (verb)	engineer (verb)
	plan and direct (a complex undertaking)
	design as an engineer