n. 1. an eel-shaped vertebrate without jaws or paired appendages; a member of the Agnatha. The group includes the cyclostomes and some extinct forms. Syn. -- jawless vertebrate, jawless fish [ WordNet 1.5 ]
n. 1. an eel-shaped vertebrate without jaws or paired appendages; a member of the Agnatha. The group includes the cyclostomes and some extinct forms. Syn. -- jawless vertebrate, jawless fish [ WordNet 1.5 ]