An extinct Indo-European language of the Celtic branch spoken by the Celtiberians in an area of the Iberian Peninsula lying between the headwaters of the Duero, Tajo, Júcar and Turia rivers and the Ebro river
Of or pertaining to the ancient Celtiberia (a district in Spain lying between the Ebro and the Tagus) or its inhabitants the Celtiberi (Celts of the river Iberus)