Entry 1 sense Webster, 1913 Vehicular /vēh-ĭk'-yəl-ẽr/ · Ve·hic·u·lar · IPA /viˈhɪk.jə.lə(ɹ)/ 01 a. Of or pertaining to a vehicle; serving as a vehicle; as, a vehicular contrivance. 1. Of or pertaining to a vehicle; serving as a vehicle; as, a vehicular contrivance.