Noun: selachian si'ley-kee-un
- Any of numerous fishes of the class Chondrichthyes characterized by a cartilaginous skeleton and placoid scales: sharks, rays, skates
"selachians have remained largely unchanged for millions of years";
- elasmobranch
Derived forms: selachians
Type of: cartilaginous fish, chondrichthian
Part of: Elasmobranchii, Selachii, subclass Elasmobranchii, subclass Selachii
Encyclopedia: Selachian