atomic number 67 vs holmium

atomic number 67 and holmium both are nouns.

Word	Noun	Adjective	Verb	Adverb
atomic number 67	Yes	No	No	No
holmium	Yes	No	No	No

As nouns, atomic number 67 and holmium are synonyms defined as:

atomic number 67 and holmium: a trivalent metallic element of the rare earth group; occurs together with yttrium; forms highly magnetic compounds

Other synonyms of atomic number 67 include Ho.

atomic number 67 (noun)	holmium (noun)
a trivalent metallic element of the rare earth group; occurs together with yttrium; forms highly magnetic compounds	a trivalent metallic element of the rare earth group; occurs together with yttrium; forms highly magnetic compounds