The term 'igloo dweller' refers to the people who live in igloos, which are dome-shaped dwellings made of snow and ice. The three crossword solutions for this term are ALEUT, ESKIMO, and INUIT. The ALEUT are an indigenous people of the Aleutian Islands in Alaska. The ESKIMO are a group of indigenous people inhabiting the Arctic regions of Greenland, Canada, and Alaska. The INUIT are a group of indigenous people inhabiting the Arctic regions of Canada and Greenland. All three of these groups are known for living in igloos and have been doing so for centuries.