Cartilaginous-fish meaning

kärtl-ăjə-nəs
Any of various fishes of the class Chondrichthyes, having a skeleton consisting mainly of cartilage rather than bone, and including the sharks, skates, rays, and chimaeras.
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Any of various fishes of the class Selachii (or Chondrichthyes), having a skeleton that is made of cartilage. Cartilaginous fishes breathe through gill slits, of which there are usually five, and their toothlike or platelike scales (called denticles) are made of dentine and enamel. Sharks, rays, skates, sawfish, and chimaeras are cartilaginous fishes.
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Members of taxonomic class Chondrichthyes which have skeletons made of cartilage rather than bone.
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