anesthyl vs local anesthetic

anesthyl and local anesthetic both are nouns.

Word	Noun	Adjective	Verb	Adverb
anesthyl	Yes	No	No	No
local anesthetic	Yes	No	No	No

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

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

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

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