n. a class of eel-shaped chordates with a cartilaginous skeleton lacking jaws, scales, and pelvic fins. Among these are the lampreys and hagfishes. There are some extinct forms.
n.
adj. of or pertaining to the Chaetognatha. [ WordNet 1.5 ]
‖n. pl. [ NL., fr. Gr. &unr_; lip +
a. (Zoöl.) Pertaining to the endognath. [ 1913 Webster ]
‖n. pl. [ NL. ] (Zool.) The schizognathous birds. [ 1913 Webster ]