1. The winged horse, sprung from the blood of Medusa, that with a stroke opened a spring in the ground, whence the poets were fabled afterwards to draw their inspiration; the poetic muse; a northern constellation; a genus of fishes with large pectoral fins.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• jeasus,
• vegases,
• pegans,
• peases,
• pegusas,
• pegusus,
• begesus,
• becasus,
• pegasaus,
• pegasuas,
• pegaus,
• oegasus,
• legasus,
• -egasus,
• 0egasus,
• pwgasus,
• psgasus,
• pdgasus,
• prgasus,
• p4gasus

The adjective form of the word "Pegasus" is "Pegasian".

The plural form of the word "pegasus" is "pegasi" or "pegasuses".

The singular form of the word "pegasus" is still "pegasus". The word "pegasus" is both the singular and the plural form.