bas·i·lar 
(băsə-lər) also bas·i·lar·y (-lĕr′ē)
(băsə-lər) also bas·i·lar·y (-lĕr′ē)adj.
Of, relating to, or located at or near the base, especially the base of the skull: the basilar artery.
[New Latin basilāris, from Latin basis, base; see BASIS.]