Entry 1 sense Webster, 1913 Interurban /(ĭn`tẽr*ûr"ban)/ · In·ter·ur·ban · IPA /ˌɪntərˈɜrbən/ 01 a. Going between, or connecting, cities or towns; as, interurban electric railways. 1. Going between, or connecting, cities or towns; as, interurban electric railways.