CAECUM
cecum, caecum, blind gut
(noun) the cavity in which the large intestine begins and into which the ileum opens; “the appendix is an offshoot of the cecum”
Source: WordNet® 3.1
Etymology
Noun
caecum (plural caeca)
(anatomy) A blind pouch connected to the large intestine between the ileum and the colon.
Synonym: blind gut
Source: Wiktionary
Cæ"cum, n.; pl. Cæcums, L. Cæca. Etym: [L. caecus blind, invisible,
concealed.] (Anat.)
(a) A cavity open at one end, as the blind end of a canal or duct.
(b) The blind part of the large intestine beyond the entrance of the
small intestine; -- called also the blind gut.
Note: 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.
Source: Webster’s Unabridged Dictionary 1913 Edition