labial artery

n.
  1. An artery with origin in the facial artery, with distribution to the lower lip, and with anastomoses to the chin and lower lip arteries; inferior labial artery.
  2. An artery with origin in the facial artery, with distribution to the upper lip and to the nasal septum, and with anastomoses to the sphenopalatine artery; superior labial artery.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.