Ir·o·quoi·an 
(îr′ə-kwoiən)
(îr′ə-kwoiən)n.
1. A family of North American Indian languages of the eastern part of Canada and the United States that includes Cayuga, Mohawk, Oneida, Onondaga, Seneca, Tuscarora, Cherokee, Erie, Huron, and Wyandot.
2. A member of an Iroquoian-speaking people.
adj.
Of or constituting the Iroquoian language family.