epiplexis vs rhetorical device

epiplexis and rhetorical device both are nouns.

Word	Noun	Adjective	Verb	Adverb
epiplexis	Yes	No	No	No
rhetorical device	Yes	No	No	No

As nouns, rhetorical device is a hypernym of epiplexis; that is, rhetorical device is a word with a broader meaning than epiplexis:

epiplexis: a rhetorical device in which the speaker reproaches the audience in order to incite or convince them
rhetorical device: a use of language that creates a literary effect (but often without regard for literal significance)

epiplexis (noun)	rhetorical device (noun)
a rhetorical device in which the speaker reproaches the audience in order to incite or convince them	a use of language that creates a literary effect (but often without regard for literal significance)