Dy vs dysprosium

Dy and dysprosium both are nouns.

Word	Noun	Adjective	Verb	Adverb
Dy	Yes	No	No	No
dysprosium	Yes	No	No	No

As nouns, Dy and dysprosium are synonyms defined as:

Dy and dysprosium: a trivalent metallic element of the rare earth group; forms compounds that are highly magnetic

Other synonyms of Dy include atomic number 66.

Dy (noun)	dysprosium (noun)
a trivalent metallic element of the rare earth group; forms compounds that are highly magnetic	a trivalent metallic element of the rare earth group; forms compounds that are highly magnetic