gymnophiona

from The Century Dictionary.

• One of the major divisions of Amphibia, having a serpentiform body, no limbs, the tail obsolete in the adult, the anus terminal, and numerous minute dermal scutes in the integument of the body. The division includes only the family Cæciliidæ, and the term is a synonym of Ophiomorpha.

from the GNU version of the Collaborative International Dictionary of English.

• noun plural (Zoöl.) An order of Amphibia, having a long, annulated, snakelike body. See ophiomorpha.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun an order of amphibians including caecilians