meitnerium vs atomic number 109

meitnerium and atomic number 109 both are nouns.

Word	Noun	Adjective	Verb	Adverb
meitnerium	Yes	No	No	No
atomic number 109	Yes	No	No	No

As nouns, meitnerium and atomic number 109 are synonyms defined as:

meitnerium and atomic number 109: a radioactive transuranic element, with atomic number 109

Other synonyms of meitnerium include element 109, Mt.

meitnerium (noun)	atomic number 109 (noun)
a radioactive transuranic element, with atomic number 109	a radioactive transuranic element, with atomic number 109