chemist vs Dorothy Hodgkin

chemist and Dorothy Hodgkin both are nouns.

Word	Noun	Adjective	Verb	Adverb
chemist	Yes	No	No	No
Dorothy Hodgkin	Yes	No	No	No

chemist (noun)	Dorothy Hodgkin (noun)
a scientist who specializes in chemistry	English chemist (born in Egypt) who used crystallography to study the structure of organic compounds (1910-1994)
a health professional trained in the art of preparing and dispensing drugs