(Greek mythology) the immortal winged horse that sprang from the blood of the slain Medusa; was tamed by Bellerophon with the help of a bridle given him by Athena; as the flying horse of the Muses it is a symbol of highflying imagination
"When I finally finished my novel, I felt like Pegasus soaring above the clouds on wings made of pure imagination."
a constellation in the northern hemisphere near Andromeda and Pisces
"We spent the evening stargazing, hoping to spot Pegasus soaring high above the horizon between the constellations of Andromeda and Pisces."
A coin of ancient Corinth, with a winged horse depicted on the obverse.
"The children were mesmerized by the statue of Pegasus soaring above the fountain in the city square."
A winged horse (imaginary or mythical, sometimes figurative).
A winged horse fabled to have sprung from the blood of Medusa when she was slain. He is noted for causing, with a blow of his hoof, Hippocrene, the inspiring fountain of the Muses, to spring from Mount Helicon. Bellerophon tamed and rode upon Pegasus when he defeated the Chimaera.
"The artist claimed that after years of struggling, her muse finally struck her like a bolt of lightning, making her feel as though she had been ridden by Pegasus onto the peak of Mount Helicon."