(Anat.) Situated below an artery; applied esp. to the branches of the bronchi given off below the point where the pulmonary artery crosses the bronchus.
hyparterial
hy·par·te·ri·al
(hī'par-tēr'ē-ăl, hip-ar-), Below or beneath an artery. [G. hypo, beneath, + artēria, artery]