Definition of polyphloisboian in English:

polyphloisboian

(also poluphloisboian)

adjective

humorous
  • That roars loudly; noisy, boisterous.

Origin

Early 19th century; earliest use found in Blackwood's Magazine. Humorously from ancient Greek πολυϕλοίσβοιο, Epic genitive of πολύϕλοισβος loud-roaring + -an.

Pronunciation

polyphloisboian

/ˌpɒlɪˈflɔɪzbɔɪən/