1. a member of the Muskhogean people formerly living in northern Alabama; a member of the Creek Confederacy;
2. the Muskhogean language spoken by the Koasati;
WordNet (r) 3.0 (2006):
Koasati
n 1: a member of the Muskhogean people formerly living in
northern Alabama; a member of the Creek Confederacy
2: the Muskhogean language spoken by the Koasati