Subcostal /(?)/

Sub·cos·tal

Subcostal

a.
  1. Situated below the costas, or ribs; as, the subcostal muscles. (Anat. & Zool.)

Subcostal

n.
  1. A subcostal muscle. (Anat.)
  2. One of the principal nervures of the wings of an insect. It is situated next beneath or behind the costal. See Nervure. (Zool.)