tres-tyne

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

• noun (Zoöl.) In the antler of a stag, the third tyne above the base. This tyne appears in the third year. In those deer in which the brow tyne does not divide, the tres-tyne is the second tyne above the base. See Illust. under rucervine, and under rusine.

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

• noun zoology In the antler of a stag, the third tyne above the base. This tyne appears in the third year. In those deer in which the brow tyne does not divide, the tres-tyne is the second tyne above the base.