ox·y·tone 
(ŏksĭ-tōn′)
(ŏksĭ-tōn′)adj.
1. Relating to or being a Greek word that has an acute accent on its last syllable.
2. Relating to or being a word that has a heavy stress accent on its last syllable.
n.
A word having the stress or the acute accent on the last syllable.
[Greek oxutonos : oxus, sharp; see ak- in the Appendix of Indo-European roots + tonos, tone; see TONE.]