Equuleus

noun Equu·le·us \ i-ˈkwü-lē-əs \

Definition of Equuleus

astronomy
: a small northern constellation that is visible between the constellations of Aquarius and Delphinus and that is represented by the figure of a small horse
  • Just west of Pegasus is the small constellation of Equuleus, the Small Horse. Equuleus is easy to identify with its parallelogram-shaped asterism.
  • —Michael R. PorcellinoA Young Astronomer's Guide to the Night Sky1990

There's more!

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!
Already a subscriber? Log in.

First Known Use of equuleus

1675


Seen and Heard

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

Love words? Need even more definitions?

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

WORD OF THE DAY

to remove or wipe out

Get Word of the Day daily email!

Test Your Vocabulary

Find the Cousins

  • a-large-tree-with-many-branches
  • Which pair shares a common word ancestor?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

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!