diethylmalonylurea vs veronal

diethylmalonylurea and veronal both are nouns.

Word	Noun	Adjective	Verb	Adverb
diethylmalonylurea	Yes	No	No	No
veronal	Yes	No	No	No

As nouns, diethylmalonylurea and veronal are synonyms defined as:

Other synonyms of diethylmalonylurea include barbital, barbitone, diethylbarbituric acid.

diethylmalonylurea (noun)	veronal (noun)
a barbiturate used as a hypnotic	a barbiturate used as a hypnotic