adipose fin

noun

: a soft fleshy rayless modification of the posterior dorsal fin found in certain fishes (such as salmons, characins, and typical catfishes)

Word History

First Known Use

1789, in the meaning defined above

Time Traveler
The first known use of adipose fin was in 1789

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Dictionary Entries Near adipose fin

Cite this Entry

“Adipose fin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/adipose%20fin. Accessed 5 Nov. 2024.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!