procaine vs topical anaesthetic

procaine and topical anaesthetic both are nouns.

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

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

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

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

procaine (noun)	topical anaesthetic (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