Source : Webster's Revised Unabridged Dictionary (1913)

Parisyllabic \Par`i*syl*lab"ic\, Parisyllabical
\Par`i*syl*lab"ic*al\, a. [Pari- + syllabic, -ical: cf. F.
   parisyllabique.]
   Having the same number of syllables in all its inflections.