veronal vs diethylbarbituric acid

veronal and diethylbarbituric acid both are nouns.

Word	Noun	Adjective	Verb	Adverb
veronal	Yes	No	No	No
diethylbarbituric acid	Yes	No	No	No

As nouns, veronal and diethylbarbituric acid are synonyms defined as:

Other synonyms of veronal include barbital, barbitone, diethylmalonylurea.

veronal (noun)	diethylbarbituric acid (noun)
a barbiturate used as a hypnotic	a barbiturate used as a hypnotic