Pegasus

[peg-uh-suh s] /ˈpɛg ə səs/
noun, genitive Pegasi
[peg-uh-sahy] /ˈpɛg əˌsaɪ/ (Show IPA), for 2.
1.
Classical Mythology. a winged horse, created from the blood of Medusa, that opened the spring of Hippocrene with a stroke of its hoof, and that carried Bellerophon in his attack on the Chimera.
2.
Astronomy. the Winged Horse, a northern constellation between Cygnus and Aquarius.
Related forms
Pegasian
[puh-gey-see-uh n] /pəˈgeɪ si ən/ (Show IPA), adjective
British Dictionary definitions for Pegasus

Pegasus1

/ˈpɛɡəsəs/
noun
1.
(Greek myth) an immortal winged horse, which sprang from the blood of the slain Medusa and enabled Bellerophon to achieve many great deeds as his rider

Pegasus2

/ˈpɛɡəsəs/
noun (Latin genitive) Pegasi (ˈpɛɡəˌsaɪ)
1.
a constellation in the N hemisphere lying close to Andromeda and Pisces
Word Origin and History for Pegasus

winged horse in Greek mythology, late 14c., from Latin, from Greek Pegasos, usually said to be from pege "fountain, spring; a well fed by a spring" (plural pegai), especially in "springs of Ocean," near which Medusa was said to have been killed by Perseus (Pegasus sprang from her blood). But this may be folk etymology, and the suffix -asos suggests a pre-Greek origin [Klein].

Pegasus in Science
Pegasus
  (pěg'ə-səs)   
A constellation in the Northern Hemisphere near Aquarius and Andromeda.
Pegasus in Culture
Pegasus [(peg-uh-suhs)]

In classical mythology, a winged horse, tamed by the hero Bellerophon with the help of a bridle given to him by Athena.

Note: As the flying horse of the Muses, Pegasus is a symbol of high-flying poetic imagination.
Pegasus in Technology

1. A product to support Internet searches, electronic mail, and Usenet news.
[Details? Addesss?]
(1997-07-14)
2. An open source project run by The Open Group which implements a Common Information Model (CIM) Object Manager.
Pegasus Home (https://openpegasus.org/).
(2003-06-07)