The Collaborative International Dictionary of English v.0.48:

Aleutian \A*leu"tian\, Aleutic \A*leu"tic\, a. [Said to be from
   the Russ. aleut a bold rock.]
   Of or pertaining to a chain of islands between Alaska and
   Kamtchatka; also, designating these islands.
   [1913 Webster]