noun Ae·go·li·us \ē-ˈgō-lē-əs\

Definition of Aegolius

  1. :  a genus of small northern owls including the saw-whet owl

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 aegolius

borrowed from New Latin, going back to Latin aegōlios, an owl (Pliny), borrowed from Greek aigōliós, aigṓlios “barn owl”

First Known Use: 1862

Seen and Heard

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


to help become familiar with something

Get Word of the Day daily email!