Seneca

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. A Native American people formerly inhabiting western New York from Seneca Lake to Lake Erie, with present-day populations in this same area and in southeast Ontario. The Seneca are the westernmost member of the original Iroquois confederacy.
2. n. A member of this people.
3. n. The Iroquoian language of the Seneca.
4. Seneca, Lucius Annaeus Known as "the Younger.” 4 B.C.?-A.D. 65. Roman Stoic philosopher, writer, and tutor of Nero. His works include treatises on rhetoric and governance and numerous plays that influenced Renaissance and Elizabethan drama.

Century Dictionary and Cyclopedia

1. n. A member of an Indian tribe which formed part of the former Iroquois confederacy of the Five Nations.
2. n. [lowercase] Same as senega.

Wiktionary

1. n. A tribe of native Americans in western New York state.
2. n. The Iroquoian language of the Seneca.
3. n. A person of Seneca heritage.
4. n. a Roman cognomen, notably borne by Lucius Annaeus Seneca, a Roman stoic philosopher, dramatist, and statesman.

WordNet 3.0

1. n. a member of the Iroquoian people formerly living in New York State south of Lake Ontario
2. n. the Iroquoian language spoken by the Seneca
3. n. Roman statesman and philosopher who was an advisor to Nero; his nine extant tragedies are modeled on Greek tragedies (circa 4 BC - 65 AD)