Ethrane vs divinyl ether

Ethrane and divinyl ether both are nouns.

Word	Noun	Adjective	Verb	Adverb
Ethrane	Yes	No	No	No
divinyl ether	Yes	No	No	No

As nouns, divinyl ether is a hypernym of Ethrane; that is, divinyl ether is a word with a broader meaning than Ethrane:

Ethrane: a nonflammable liquid (trade name Ethrane) used as an inhalation general anesthetic
divinyl ether: a colorless volatile highly flammable liquid formerly used as an inhalation anesthetic

Other hypernyms of Ethrane include diethyl ether, ether, ethoxyethane, ethyl ether, vinyl ether.

Ethrane (noun)	divinyl ether (noun)
a nonflammable liquid (trade name Ethrane) used as an inhalation general anesthetic	a colorless volatile highly flammable liquid formerly used as an inhalation anesthetic