vinyl ether vs Ethrane

vinyl ether and Ethrane both are nouns.

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

As nouns, Ethrane is a hyponym of vinyl ether; that is, Ethrane is a word with a more specific, narrower meaning than vinyl ether:

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

Other hyponyms of vinyl ether include enflurane.

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