'Ischial callosity' definitions:

Definition of 'Ischial callosity'

From: GCIDE
  • Ischial \Is"chi*al\ ([i^]s"k[i^]*al), a. (Anat.) Of or pertaining to the ischium or hip; ischiac; ischiadic; ischiatic. [1913 Webster]
  • Ischial callosity (Zool.), one of the patches of thickened, hairless, and often bright-colored skin, on the buttocks of many apes, as the drill. [1913 Webster]