plural noun Odo·na·ta \ˌōdənˈätə, -ˈātə; ōˈdänətə\

Definition of Odonata

  1. :  an order of insects containing the dragonflies and damselflies and characterized by aquatic larvae that are nymphs or naiads and by predaciousness in both adult and larval forms

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.

Join MWU now and get access to America’s largest dictionary, with:

  • 300,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Origin and Etymology of odonata

New Latin, irregular from Greek odōn tooth + New Latin -ata

Seen and Heard

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


a brief usually trivial fact

Get Word of the Day daily email!