caecum

Etymology

Borrowed from Latin caecum (“invisible, hidden”), clipping of intestīnum caecum (“blind gut”), translation of Ancient Greek τῠφλὸν ἔντερον (tuphlòn énteron).

noun

1. (anatomy) A cavity open at one end (such as the blind end of a duct), especially a blind pouch connected to the large intestine between the ileum and the colon.
   After a preliminary course in anatomy it was found that caecum and transverse colon also provided excellent sites for excitation. 1970, J. G. Ballard, The Atrocity Exhibition