The Collaborative International Dictionary of English v.0.48:

Caecilian \C[ae]*cil"i*an\ (?; 106), n. [L. caecus blind. So
   named from the supposed blindness of the species, the eyes
   being very minute.] (Zool.)
   A limbless amphibian belonging to the order C[ae]cili[ae]
   or Ophimorpha. See Ophiomorpha. [Written also
   c[oe]cilian.]
   [1913 Webster]

WordNet (r) 3.0 (2006):

caecilian
    adj 1: of or relating to or belonging to the family Caeciliidae
    n 1: any of the small slender limbless burrowing wormlike
         amphibians of the order Gymnophiona; inhabit moist soil in
         tropical regions [syn: caecilian, blindworm]