chemist vs Heyrovsky

chemist and Heyrovsky both are nouns.

Word	Noun	Adjective	Verb	Adverb
chemist	Yes	No	No	No
Heyrovsky	Yes	No	No	No

chemist (noun)	Heyrovsky (noun)
a scientist who specializes in chemistry	Czechoslovakian chemist who developed polarography (1890-1967)
a health professional trained in the art of preparing and dispensing drugs