Definition of Seneca
plural Seneca or Senecas
1 : a member of an American Indian people of what is now western New York
2 : the Iroquoian language of the Seneca people
Origin of seneca
Dutch Sennecaas, plural, the Iroquois living west of the Mohawks
First Known Use: circa 1616
Learn More about seneca
Britannica.com: Encyclopedia article about "Seneca"
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