citerior UK /sɪˈtɪə.ɹɪ.ə/US /səˈtɪ.ɹi.ɚ/ adjective1 •(literary) Chiefly in place names: situated on the nearer side.It [Spain] was divided by the Romans into two provinces, Citeriour and Ulteriour, nearer and farther, that is, from Rome. — 1827