Pronunciation: (tan'u-nä", -nô"),[key] —n., —pl.-nas,(esp. collectively)-nafor 2. 1. a river flowing NW from E Alaska to the Yukon River. ab. 650 mi. (1045 km) long.
2. a member of a North American Indian people of the Tanana River drainage basin in east-central Alaska.
3. the Athabaskan language of the Tanana.