oxytone

from The American Heritage® Dictionary of the English Language, 5th Edition.

• adjective Relating to or being a Greek word that has an acute accent on its last syllable.
• adjective Relating to or being a word that has a heavy stress accent on its last syllable.
• noun A word having the stress or the acute accent on the last syllable.

from The Century Dictionary.

• In grammar, especially Greek grammar: Having or characterized by the acute accent on the last syllable.
• Causing a word to take the acute accent on the final syllable: as, an oxytone suffix.
• noun A word which has the acute accent on the last syllable.
• In grammar, to pronounce or write with the acute accent on the final syllable: as, to oxytone a word.

from the GNU version of the Collaborative International Dictionary of English.

• adjective Having an acute sound; (Gr. Gram.), having an acute accent on the last syllable.
• noun An acute sound.
• noun (Gr. Gram.) A word having the acute accent on the last syllable.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• adjective linguistics Pertaining to a word with the stress or an acute accent on the last syllable.
• noun linguistics A word with the stress or an acute accent on the last syllable.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun word having stress or an acute accent on the last syllable