plural noun
Cith·​e·​ro·​ni·​idae | \ ˌsithərōˈnīəˌdē \

Definition of Citheroniidae

: a family of large North American moths lacking a frenulum, having small maxillary and labial palpi, and having larvae commonly armed with hairs and spines that feed on the leaves of deciduous trees

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 Citheroniidae

New Latin, from Citheronia, type genus + -idae

Keep scrolling for more

Learn More about Citheroniidae

Statistics for Citheroniidae

Cite this Entry

“Citheroniidae.” Dictionary, Merriam-Webster, Accessed 24 Feb. 2021.

Style: MLA
MLA Chicago APA Merriam-Webster

Comments on Citheroniidae

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


Test Your Vocabulary

More Confusing Words—Quiz

  • cats on impossible timber
  • The magician ______ moved the selected card to the top of the deck.
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

Universal Daily Crossword

A daily challenge for crossword fanatics.

Love words? Need even more definitions?

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