[peg-uh-suh s]

noun, genitive Peg·a·si [peg-uh-sahy] /ˈpɛg əˌsaɪ/ for 2.

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.
Astronomy. the Winged Horse, a northern constellation between Cygnus and Aquarius.

Related formsPe·ga·si·an [puh-gey-see-uh n] /pəˈgeɪ si ən/, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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Historical Examples of pegasi

British Dictionary definitions for pegasi




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



noun Latin genitive Pegasi (ˈpɛɡəˌsaɪ)

a constellation in the N hemisphere lying close to Andromeda and Pisces
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for pegasi


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].

Online Etymology Dictionary, © 2010 Douglas Harper

pegasi in Science



A constellation in the Northern Hemisphere near Aquarius and Andromeda.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

pegasi in Culture



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


As the flying horse of the Muses, Pegasus is a symbol of high-flying poetic imagination.
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.