Definition of radial artery in US English:

radial artery

noun

Anatomy Zoology
  • 1One of the two major arteries of the forearm in humans, originating from the brachial artery and passing along the radial side of the forearm into the hand; (also) the corresponding artery of the forearm in other tetrapods, arising from the median artery.

  • 2Any of a group of arteries arranged in a radial pattern within an organ.

Origin

Late 17th century.