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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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Example Sentences

From September 10-14, Chinook must have an adipose or left ventral fin clip to be retained. 

Chinook retention on Sundays and Mondays will be limited to hatchery fish with an adipose or left ventral fin clip.

Chinook retention on Sundays and Mondays will be limited to hatchery fish with an adipose or left ventral fin clip only.

These steelhead can be identified by having both the adipose and right ventral fin clipped.

Effective August 30 through September 1, all Chinook must be adipose or left ventral fin clipped to be retained. 

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