plural noun
Nem·​a·​tog·​na·​thi | \ ˌneməˈtägnəˌthī \

Definition of Nematognathi

in some classifications
: an order of scaleless fishes that comprises the catfishes and is equivalent to the suborder Siluroidea of the order Ostariophysi

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!

Other Words from Nematognathi

nematognathous \ ¦⸗⸗¦⸗⸗thəs \ adjective

History and Etymology for Nematognathi

New Latin, from nemat- + -gnathi (from -gnathi, plural of -gnathus -gnathous)

Keep scrolling for more

Learn More about Nematognathi

Statistics for Nematognathi

Cite this Entry

“Nematognathi.” Dictionary, Merriam-Webster, Accessed 20 Oct. 2020.

Comments on Nematognathi

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


Test Your Vocabulary

Farm Idioms Quiz

  • cow coming home
  • What does 'poke' refer to in the expression 'pig in a poke'?
Spell It

Can you spell these 10 commonly misspelled words?

Syn City

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!