anesthyl vs topical anaesthetic

anesthyl and topical anaesthetic both are nouns.

Word	Noun	Adjective	Verb	Adverb
anesthyl	Yes	No	No	No
topical anaesthetic	Yes	No	No	No

As nouns, topical anaesthetic is a hypernym of anesthyl; that is, topical anaesthetic is a word with a broader meaning than anesthyl:

anesthyl: a mixture of methyl and ethyl chloride; sprayed on as a local anesthetic
topical anaesthetic: anesthetic that numbs a particular area of the body

Other hypernyms of anesthyl include local, local anaesthetic, local anesthetic, topical anesthetic.

anesthyl (noun)	topical anaesthetic (noun)
a mixture of methyl and ethyl chloride; sprayed on as a local anesthetic	anesthetic that numbs a particular area of the body