Ag·​e·​la·​ius | \ ˌa-jə-ˈlā-əs \

Definition of Agelaius

: a genus of birds (family Icteridae) comprising the red-winged blackbirds

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!

First Known Use of Agelaius

1824, in the meaning defined above

History and Etymology for Agelaius

borrowed from New Latin, borrowed from Greek agelaîos “of the herd, gregarious,” from agélē “herd, troop” (derivative of ágein “to lead”) + -aios, adjective suffix

Keep scrolling for more

Learn More about Agelaius

Time Traveler for Agelaius

Time Traveler

The first known use of Agelaius was in 1824

See more words from the same year

Statistics for Agelaius

Cite this Entry

“Agelaius.” Dictionary, Merriam-Webster, Accessed 30 May. 2020.

Comments on Agelaius

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


See Definitions and Examples »

Get Word of the Day daily email!

Test Your Vocabulary

May 2020 Words of the Day Quiz

  • a blooming wisteria tree
  • Which is a synonym of exiguous?
Spell It

Can you spell these 10 commonly misspelled words?

Bee Cubed

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!