Al-Hasan ibn al-Haytham vs physicist

Al-Hasan ibn al-Haytham and physicist both are nouns.

Word	Noun	Adjective	Verb	Adverb
Al-Hasan ibn al-Haytham	Yes	No	No	No
physicist	Yes	No	No	No

Al-Hasan ibn al-Haytham (noun)	physicist (noun)
an Egyptian polymath (born in Iraq) whose research in geometry and optics was influential into the 17th century; established experiments as the norm of proof in physics (died in 1040)	a scientist trained in physics