noun
eel-shaped vertebrate without jaws or paired appendages including the cyclostomes and some extinct forms
• Syn: ↑jawless vertebrate, ↑agnathan
• Hypernyms: ↑aquatic vertebrate
• Hyponyms:
↑ostracoderm, ↑heterostracan, ↑osteostracan, ↑cephalaspid, ↑anaspid, ↑conodont, ↑cyclostome, ↑lamprey, ↑lamprey eel, ↑lamper eel, ↑hagfish, ↑hag, ↑slime eels
• Member Holonyms: ↑Agnatha, ↑superclass Agnatha
* * *
noun : any of the primitive vertebrates comprising the superclass Agnatha
* * *
cyclostome.
[1965-70; JAW1 + -LESS]
Useful english dictionary. 2012.