<p><strong>Noun</strong></p><ul><li>a family of languages spoken by North American Indians in most of Alaska and inland northwest Canada, in coastal Oregon and California, and in Arizona and the Rio Grande basin, including especially Navajo, Apache, and Chipewyan.</li><li>a member of any of various North American Indian peoples speaking Athabascan.</li></ul><p><strong>Adjective</strong></p><ul><li>belonging to or characteristic of the Athabascan.</li></ul>