caecum

n. pl. Cæcums, L. Cæca (#).

1. A cavity open at one end, as the blind end of a canal or duct.
2. The blind part of the large intestine beyond the entrance of the small intestine; -- called also the blind gut.

The cæcum is comparatively small in man, and ends in a slender portion, the vermiform appendix; but in herbivorous mammals it is often as large as the rest of the large intestine. In fishes there are often numerous intestinal cæca.