ce·cum also
cae·cum 
(s
ēk
əm)
n. pl. ce·ca also
cae·ca (-k
ə)
1. Anatomy The large pouch at the beginning of the large intestine, located in the lower right-hand side of the abdomen. Also called blind gut.
2. A sac or bodily cavity with only one opening.
[Middle English, from Latin (intestīnum) caecum, blind (intestine), neuter of caecus, blind.]
cecal adj.
cecal·ly adv.