Definition - A nonce word that denotes "that which consists of several words."
Note: As opposed to the monepic, that which consists of a single word.

Example -
The sentence "No way!" is polypepic, whereas the sentence "No!" is monepic.

Etymology -
The term derives from the Greek polys, many + epos, word.

Oxford English Dictionary -
Its first (and only) citation is from 1811–31:
"This proposition will consist of one word only, or of divers words,—will be either monoepic or *polyepic."
(Bentham Language Wks. 1843 VIII. 333/1)

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