selachian
se·lac·hian
noun
1.
any of numerous fishes of the class Chondrichthyes characterized by a cartilaginous skeleton and placoid scales: sharks; rays; skates
Origin
From the (disused) genus name Selache, from Latin selachē, from the plural of Ancient Greek σέλαχος (sélakhos, “shark”).
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Parts
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.