'Costal' definitions:

Definition of 'costal'

From: WordNet
adjective
Of or relating to or near a rib

Definition of 'Costal'

From: GCIDE
  • Costal \Cos"tal\ (k?s"tal), a. [Cf. F. costal. See Costa.]
  • 1. (Anat.) Pertaining to the ribs or the sides of the body; as, costal nerves. [1913 Webster]
  • 2. (Bot. & Zool.) Relating to a costa, or rib. [1913 Webster]
  • Costal cartilage. See Cartilage, and Illust. of Thorax. [1913 Webster]