plural noun
Plo·​to·​si·​dae | \ -səˌdē\

Definition of Plotosidae

: a family of chiefly tropical marine catfishes having an elongate eellike scaleless body and an arborescent movable organ of unknown function behind the vent

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!

History and Etymology for Plotosidae

New Latin, from Plotosus, type genus + -idae

Keep scrolling for more

Comments on Plotosidae

What made you want to look up Plotosidae? Please tell us where you read or heard it (including the quote, if possible).


to wander slowly or to speak indistinctly

Get Word of the Day daily email!

Test Your Vocabulary

Where in the World? A Quiz

  • peter bruegel tower of babel painting
  • What language does pajama come from?
Spell It

Can you spell these 10 commonly misspelled words?

Add Diction

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

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