ergocalciferol vs viosterol

ergocalciferol and viosterol both are nouns.

Word	Noun	Adjective	Verb	Adverb
ergocalciferol	Yes	No	No	No
viosterol	Yes	No	No	No

As nouns, ergocalciferol and viosterol are synonyms defined as:

ergocalciferol and viosterol: a fat-soluble vitamin that prevents rickets

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

ergocalciferol (noun)	viosterol (noun)
a fat-soluble vitamin that prevents rickets	a fat-soluble vitamin that prevents rickets