亞前緣
Subcostal \Sub*cos"tal\, a. (Anat. & Zo["o]l.) Situated below the costas, or ribs; as, the subcostal muscles. Note: The subcostal muscles are distinct from, and within, the intercostal. Subcostal \Sub*cos"tal\, n. 1. (Anat.) A subcostal muscle. 2. (Zo["o]l.) One of the principal nervures of the wings of an insect. It is situated next beneath or behind the costal. See {Nervure}.