The Collaborative International Dictionary of English v.0.48:

Caecal \C[ae]"cal\, a. (Anat.)
   [1913 Webster]
   1. Of or pertaining to the c[ae]cum, or blind gut.
      [1913 Webster]

   2. Having the form of a c[ae]cum, or bag with one opening;
      baglike; as, the c[ae]cal extremity of a duct.
      [1913 Webster]

WordNet (r) 3.0 (2006):

caecal
    adj 1: of or like a cecum [syn: cecal, caecal]