Learn how to say Elasmobranch correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word elasmobranch:
a cartilaginous fish of a group that comprises the sharks, rays, and skates. Compare with selachian.
Subclass Elasmobranchii, class Chondrichthyes
late 19th century: from modern Latin Elasmobranchii (plural), from Greek elasmos ‘beaten metal’ + brankhia ‘gills’