physicist vs Max Karl Ernst Ludwig Planck

physicist and Max Karl Ernst Ludwig Planck both are nouns.

Word	Noun	Adjective	Verb	Adverb
physicist	Yes	No	No	No
Max Karl Ernst Ludwig Planck	Yes	No	No	No

physicist (noun)	Max Karl Ernst Ludwig Planck (noun)
a scientist trained in physics	German physicist whose explanation of blackbody radiation in the context of quantized energy emissions initiated quantum theory (1858-1947)