arteriotomy

from The Collaborative International Dictionary of English v.0.48

Arteriotomy \Ar*te`ri*ot"o*my\, n. [L. arteriotomia, Gr. ?; ? +
   ? a cutting.]
   1. (Med.) The opening of an artery, esp. for bloodletting.
      [1913 Webster]

   2. That part of anatomy which treats of the dissection of the
      arteries.
      [1913 Webster]