Definition of Pegasus in English:


proper noun

  • 1Greek Mythology
    A winged horse that sprang from the blood of Medusa when Perseus cut off her head.

  • 2Astronomy
    A large northern constellation, said to represent a winged horse. The three brightest stars, together with one star of Andromeda, form the prominent Square of Pegasus.

    1. 2.1as genitive Pegasi /ˈpeɡəsī/ Used with a preceding letter or numeral to designate a star in this constellation.
      ‘the star Zeta Pegasi’


Via Latin from Greek.