Ethocaine vs topical anesthetic

Ethocaine and topical anesthetic both are nouns.

Word	Noun	Adjective	Verb	Adverb
Ethocaine	Yes	No	No	No
topical anesthetic	Yes	No	No	No

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

Ethocaine: a white crystalline powder (trade name Ethocaine) administered near nerves as a local anesthetic in dentistry and medicine
topical anesthetic: anesthetic that numbs a particular area of the body

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

Ethocaine (noun)	topical anesthetic (noun)
a white crystalline powder (trade name Ethocaine) administered near nerves as a local anesthetic in dentistry and medicine	anesthetic that numbs a particular area of the body