Elasmobranch refers to any of numerous fishes of the class Chondrichthyes that are characterized by a cartilaginous skeleton and placoid. The term can also be used to describe something of or belonging to the class Chondrichthyes.
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what is the definition of elasmobranch
belonging or pertaining to the Elasmobranchii, the subclass of cartilaginous fishes comprising the sharks and rays.