Wordnet 3.0
NOUN (1)
1.
any of numerous fishes of the class Chondrichthyes characterized by a cartilaginous skeleton and placoid scales: sharks;
rays;
skates;
[syn: elasmobranch, selachian]
The Collaborative International Dictionary of English v.0.48:
Selachian \Se*la"chi*an\, n. (Zool.)
One of the Selachii. See Illustration in Appendix.
[1913 Webster]
WordNet (r) 3.0 (2006):
selachian
n 1: any of numerous fishes of the class Chondrichthyes
characterized by a cartilaginous skeleton and placoid
scales: sharks; rays; skates [syn: elasmobranch,
selachian]