Source : Webster's Revised Unabridged Dictionary (1913)

Oxytone \Ox"y*tone\, a. [Gr. ???; ??? sharp + ??? tone.]
   Having an acute sound; (Gr. Gram.), having an acute accent on
   the last syllable.

Oxytone \Ox"y*tone\, n.
   1. An acute sound.

   2. (Gr. Gram.) A word having the acute accent on the last
      syllable.

Source : WordNet®

oxytone
     n : word having stress or an acute accent on the last syllable