chit·i·ma·chan I. \| ̷ ̷ ̷ ̷| ̷ ̷shən\adjective Usage: usually capitalized : of or relating to the Chitimacha or their language II. noun (pluralchitimachanorchitimachans) Usage: usually capitalized Etymology:Chitimachan (I) : a language family of the Gulf phylum in Louisiana comprising the Chitimacha language