• (a.) Situated upon or above an artery; -- applied esp. to the branches of the bronchi given off above the point where the pulmonary artery crosses the bronchus.
Ep`ar·te'ri·al adjective [ Prefix ep- + arterial .] (Anat.) Situated upon or above an artery; -- applied esp. to the branches of the bronchi given off above the point where the pulmonary artery crosses the bronchus. 
Type: Term Pronunciation: ep′ar-tēr′ē-ăl Definitions: 1. On or superior to an artery.