Merriam-Webster Logo
SINCE 1828
Menu
dictionary thesaurus

Cyprinodontidae

plural noun
Cy·​prin·​o·​don·​ti·​dae | \ -ˈdäntəˌdē\

Definition of Cyprinodontidae

: a large family (order Microcyprini) of small scaly-headed soft-finned fishes that feed on water plants and insects and include the typical killifishes of the northern hemisphere

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 Cyprinodontidae

New Latin, from Cyprinodont- Cyprinodon, type genus + -idae

Keep scrolling for more

Learn More about Cyprinodontidae

Statistics for Cyprinodontidae

Look-up Popularity

Comments on Cyprinodontidae

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

Show Comments  Hide Comments 

WORD OF THE DAY

inexorable

Listen to the pronounciation of inexorable

not to be persuaded, moved, or stopped

Get Word of the Day daily email!

Test Your Vocabulary

Words from Greek and Latin Quiz

  • roman forum
  • Which of the following months comes from a Latin word for “ten”?
True or False

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

TAKE THE QUIZ
Word Winder's CrossWinder

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

TAKE THE QUIZ
Love words? Need even more definitions?

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

Words at Play
Ask the Editors
Word Games