ce·​rat·​o·​dus | \ sə̇ˈratədəs\

Definition of ceratodus

1 capitalized : a genus (the type of the family Ceratodontidae) comprising dipnoan fishes that have archipterygial pectoral and pelvic fins and dental plates with radiating ridges, being originally based on and now usually restricted to fossil forms from the Mesozoic but in some especially former classifications including the surviving Australian lungfish
2 plural -es : any fish or fossil of Ceratodus or a closely related genus

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 ceratodus

New Latin, from cerat- + -odus

Keep scrolling for more

Learn More about ceratodus

Share ceratodus

Statistics for ceratodus

Look-up Popularity

Comments on ceratodus

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


to boil down or concentrate

Get Word of the Day daily email!

Test Your Vocabulary

Original Meanings Quiz

  • rembrandt-painting-a-young-scholar-and-his-tutor
  • Which of the following is the earliest known sense of the word awe?
True or False

Test your knowledge - and maybe learn something along the way.

Word Winder's CrossWinder

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!