What is "agnathan"

agnathan \agnathan\ 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

a. (context zoology English) Belonging or pertaining to the superclass Agnatha, the jawless vertebrates. n. (context zoology English) A member of the superclass Agnatha of jawless vertebrates.

n. eel-shaped vertebrate without jaws or paired appendages including the cyclostomes and some extinct forms [syn: jawless vertebrate, jawless fish]