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}]
Selachian \Se*la"chi*an\, n. (Zool.) One of the Selachii. See Illustration in Appendix. [1913 Webster]