folacin vs folic acid

folacin and folic acid both are nouns.

Word	Noun	Adjective	Verb	Adverb
folacin	Yes	No	No	No
folic acid	Yes	No	No	No

As nouns, folacin and folic acid are synonyms defined as:

folacin and folic acid: a B vitamin that is essential for cell growth and reproduction

Other synonyms of folacin include folate, pteroylglutamic acid, pteroylmonoglutamic acid, vitamin Bc, vitamin M.

folacin (noun)	folic acid (noun)
a B vitamin that is essential for cell growth and reproduction	a B vitamin that is essential for cell growth and reproduction