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Definitions of tail fin
Definition that contains tail fin
  • squid widely distributed fast-moving ten-armed cephalopod mollusk having a long tapered body with triangular tail fins
  • yellowtail game fish of southern California and Mexico having a yellow tail fin
  • ichthyosaur any of several marine reptiles of the Mesozoic having a body like a porpoise with dorsal and tail fins and paddle-shaped limbs
  • homocercal fin symmetrical tail fin extending beyond the end of the vertebral column as in most bony fishes
  • seriola dorsalis game fish of southern California and Mexico having a yellow tail fin
  • heterocercal fin a tail fin with unequal lobes in which the vertebral column turns upward into the larger lobe as in sharks
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