cholecalciferol vs D

cholecalciferol and D both are nouns.

Word	Noun	Adjective	Verb	Adverb
cholecalciferol	Yes	No	No	No
D	Yes	No	No	No

As nouns, cholecalciferol and D are synonyms defined as:

Other synonyms of cholecalciferol include calciferol, ergocalciferol, viosterol, vitamin D.

cholecalciferol (noun)	D (noun)
a fat-soluble vitamin that prevents rickets	the 4th letter of the Roman alphabet
	the cardinal number that is the product of one hundred and five
	a fat-soluble vitamin that prevents rickets