a. 多音节的

Polysyllabic \Pol`y*syl*lab"ic\, Polysyllabical
\Pol`y*syl*lab"ic*al\, a. [Gr. ?; poly`s many + ? syllable: cf.
F. polysyllabique.]
Pertaining to a polysyllable; containing, or characterized
by, polysyllables; consisting of more than three syllables.