Pygidiidae

noun

Py·​gi·​di·​idae
ˌpījəˈdīəˌdē
in some classifications
: a family of usually small and often parasitic South American catfishes that lack an adipose fin and have the dorsal fin located far back toward the tail

Word History

Etymology

New Latin, from Pygidium, type genus (from Greek pygidion) + -idae

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 Pygidiidae

Cite this Entry

“Pygidiidae.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Pygidiidae. Accessed 1 Dec. 2024.

Love words? Need even more definitions?

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