Elasmobranch a. : Of or pertaining to the Elasmobranchii.

Elasmobranch n. : One of the Elasmobranchii.

Example:


Taxonomy
Elasmobranchii, rays, sharks, subclass, free encyclopedia, fish, skates, Fossil range, cartilaginous fish, underwent, the sharks, elasmobranch, search, Late Silurian, Carcharodon carcharias, Kingdom, Phylum, Evolution.

Defination from the web:
Elasmobranch) Jump to: navigation, search. Elasmobranchii (rays and sharks) ... Many surviving orders of elasmobranch date back to the Cretaceous, or earlier.[2] [edit] Description ...