Equuleus

noun

Equu·​le·​us i-ˈkwü-lē-əs 

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. Porcellino, A Young Astronomer's Guide to the Night Sky, 1990

Word History

First Known Use

1675, in the meaning defined above

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