Iroquois

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A member of a Native American confederacy, known as the Iroquois League or the Iroquois Confederacy, inhabiting New York State and originally composed of the Mohawk, Oneida, Onondaga, Cayuga, and Seneca peoples, known as the Five Nations. After 1722 the confederacy was joined by the Tuscaroras to form the Six Nations.
• noun Any or all of the languages of the Iroquois.

from The Century Dictionary.

• noun One of a former confederation of American Indians, situated in central New York, originally composed of five tribes—the Mohawks, Oneidas, Onondagas, Cayugas, and Senecas—and hence known as the Five Nations.
• Belonging or relating to the Iroquois or their tribes, or to the Iroquois family of languages.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Ethnol.) A powerful and warlike confederacy of Indian tribes, formerly inhabiting Central New York and constituting most of the Five Nations. Also, any Indian of the Iroquois tribes.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• proper noun 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.
• proper noun A person belonging to one of these tribes.
• proper noun Any of the languages of the Iroquois, belonging to the Iroquoian family of languages.
• proper noun A kind of hairdo, where both sides of the head are shaved leaving only a stripe of hair in the middle.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a family of North American Indian languages spoken by the Iroquois
• noun any member of the warlike North American Indian peoples formerly living in New York State; the Iroquois League were allies of the British during the American Revolution