Source : Webster's Revised Unabridged Dictionary (1913)

Paroxytone \Par*ox"y*tone\, n. [Gr. ?, a. See {Para-}, and
   {Oxytone}.] (Gr. Gram.)
   A word having an acute accent on the penultimate syllable.

Source : WordNet®

paroxytone
     n : word having stress or acute accent on the next to last
         syllable