Heterognathi

plural noun

Het·​er·​og·​na·​thi
ˌhetəˈrägnəˌthī
in some classifications
: an order of teleost fishes that resemble members of the family Cyprinidae but have an adipose fin and teeth in the jaws and that comprise Characidae and related families now usually included in a division of the suborder Cyprinoidea compare ostariophysi

Word History

Etymology

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

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 Heterognathi

Cite this Entry

“Heterognathi.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Heterognathi. Accessed 5 Feb. 2023.

Love words? Need even more definitions?

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


Challenging Words You Should Know

  • hedgehog reading a book
  • Often used to describe “the march of time,” what does inexorable mean?
Name That Thing

You know what it looks like… but what is it called?

TAKE THE QUIZ
Solve today's spelling word game by finding as many words as you can with using just 7 letters. Longer words score more points.

Can you make 12 words with 7 letters?

PLAY