Definition of Pegasus in English:

Pegasus

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

Origin

Via Latin from Greek.

Pronunciation:

Pegasus

/ˈpeɡəsəs/