ALEUT (al'e-oot), a native of the Aleutian islands and part of the Alaska peninsula, a branch of the Eskimo stock. They differ from the Eskimo in their brachycephaly, but resemble them in features, and their language, though well differentiated, is fundamentally Eskimo. Their culture, too, is from the same( source, though adapted to a raw and wet rather than an extremely cold environment. They came under Russian control, became Or thodox Christians, are now hybrid in blood as well as customs. and reduced in numbers. In there remained 2,200 ; in 1900, 1,700.