1. Caddoan - Noun
2. Caddoan - Adjective
a family of North American Indian languages spoken widely in the Midwest by the Caddo
Source: WordNetArikara, North American Plains Indians of the Caddoan linguistic family. Source: Internet
The tribe is part of the Caddoan Mississippian culture and thought to be an extension of woodland period peoples who started inhabiting the area around 200 BC. Source: Internet
This group is considered ancestral to the Natchez and Taensa Peoples. citation By 1000 CE in the northwestern part of the state, the Fourche Maline culture had evolved into the Caddoan Mississippian culture. Source: Internet