In anatomy, of or pertaining to the pylorus: opposed to cardiac: as, pyloric valve; pyloric orifice; pyloric compartment of the stomach. See cuts under Dibranchiata, ink-bag, and intestine.In entomology, the cæcal diverticula with which the chylific ventricle of an insect may be provided. See cut under Blattidæ.The pyloric cæca of a fish.