Definition of "Iroquois"

A member of a confederacy of (originally) five Native American (Indian) tribes: the Mohawks, the Oneidas, the Onondagas, the Cayugas, and the Senecas. Also known as the Iroquois League.  examples

A kind of hairdo where both sides of the head are shaved, leaving only a stripe of hair in the middle.  examples

Any of the languages of the Iroquois, belonging to the Iroquoian family of languages.  examples