Ethrane vs ethyl ether

Ethrane and ethyl ether both are nouns.

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

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

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

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

Ethrane (noun)	ethyl 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