Definition from Wiktionary, the free dictionary
Alternative forms 
Athabascan (not comparable)
- Pertaining to a group of peoples mostly inhabiting Alaska, western Canada, the Pacific coast of California and Oregon, and the Navajo and Apache peoples in the American Southwest. Sometimes thought to have been the second migration of peoples into the Americas.
Proper noun 
Athabascan (plural Athabascans)
- Any member of these peoples.