ALL meanings of costanoan
Cos·ta·no·an
C c - noun costanoan a family of eight languages, now extinct, spoken by American Indian peoples of coastal California: part of the Penutian stock. 1
- noun costanoan any of the speakers of these languages, who formerly inhabited the coast and adjacent river valleys from San Francisco Bay south to Monterey Bay and Point Sur. 1
- adjective costanoan of or relating to Costanoan or the Costanoans. 1