cinnabar vs atomic number 80

cinnabar and atomic number 80 both are nouns.

Word	Noun	Adjective	Verb	Adverb
cinnabar	Yes	Yes	No	No
atomic number 80	Yes	No	No	No

cinnabar (noun)	atomic number 80 (noun)
large red-and-black European moth; larvae feed on leaves of ragwort; introduced into United States to control ragwort	a heavy silvery toxic univalent and bivalent metallic element; the only metal that is liquid at ordinary temperatures
a heavy reddish mineral consisting of mercuric sulfide; the chief source of mercury

cinnabar (adjective)	atomic number 80 (adjective)
of a vivid red to reddish-orange color