Definition of Equuleus
: 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. Porcellino, A Young Astronomer's Guide to the Night Sky, 1990
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 equuleus
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).