Tsi·mshi·an 
(chĭmshē-ən, tsĭm-)
(chĭmshē-ən, tsĭm-)n. pl. Tsimshian or Tsi·mshi·ans
1. A member of a Native American people inhabiting a coastal area of western British Columbia and extreme southeast Alaska.
2. The family of languages spoken by the Tsimshian and related peoples.