veronal vs diethylmalonylurea

veronal and diethylmalonylurea both are nouns.

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

As nouns, veronal and diethylmalonylurea are synonyms defined as:

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

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