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ventral fin

ventral fin

noun

  1. another name for pelvic fin
  2. any unpaired median fin situated on the undersurface of fishes and some other aquatic vertebrates
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


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Word History and Origins

Origin of ventral fin1

First recorded in 1745–55

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