vinyl cyanide vs nitril

vinyl cyanide and nitril both are nouns.

Word	Noun	Adjective	Verb	Adverb
vinyl cyanide	Yes	No	No	No
nitril	Yes	No	No	No

As nouns, nitril is a hypernym of vinyl cyanide; that is, nitril is a word with a broader meaning than vinyl cyanide:

vinyl cyanide: a colorless liquid unsaturated nitrile made from propene
nitril: any of a class of organic compounds containing the cyano radical -CN

Other hypernyms of vinyl cyanide include cyanide, nitrile.

vinyl cyanide (noun)	nitril (noun)
a colorless liquid unsaturated nitrile made from propene	any of a class of organic compounds containing the cyano radical -CN