ray-finned

adjective

Definition of ray-finned

:having fins supported by bony or horny rays (see 2ray 5a(1)) :acanthopterygian
  • The vast majority of ray-finned fish species are contained in the Teleostei, a clade noted for its diversity of behavior, functional morphology, and ecology in aquatic habitats throughout the world.
  • —George V. LauderQuarterly Review of BiologyMarch 1999
  • Morays belong to a group called ray-finned fishes that includes a vast majority of fish species, like tuna, goldfish, salmon and trout.
  • —Carl ZimmerNew York Times11 Sept. 2007
— compare lobe-finned

ray-fin

noun, plural ray-fins
    • All the fossils belonging to the ancestral group that gave rise to ray-fins some 300 million years ago came from freshwater deposits.
    • —Colin BarrasNew Scientist11 Feb. 2012

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First Known Use of ray-finned

1933


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