subcostal (subkostal)

and n. I. a. 1. In an at. and zoöl.: ( a ) Situated below a rib; extending from one rib to a succeeding one; infracostal: specifically noting the muscles called subcosta les. (b) Lying along the under side or edge of a rib: as, a subcostal groove for an artery. (c) Placed under or within the ribs or costal cartilages collectively; hypochondrial; sub cartilaginous. - 2. In entom., situated near, but not at or on, the costa: specifically noting the subcostal. - Subcostal angle, the angle which the costal border of one side forms with that of the other at the lower end of the sternum. Subcostal cells, in entom., cells between the costal and subcostal veins: they are generally numbered from the base outward. Subcostal vein or nervure, in entom., a strong longitudinal vein behind the costal vein and more or le parallel to the costal edge: in the Lepidoptera it forms the anterior edge of the large dorsal cell, and exteriorly it is divided into a number of branches, called subcostal veinlets or nervules, and numbered from before backward. Sometimes called post costal vein or nervure. See cut under costal. II. n. 1. In zoöl . and an at .: (a) A subcostal or infracostal muscle. See subcostal is . (b) A subcostal artery, vein, or nerve, running along the groove in the lower border of a rib; an intercostal.-2. In entom., a subcostal vein or nervure; the subcosta. sub diapente