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Meaning of petasus

pet•a•sus

Pronunciation: (pet'u-sus), [key]
— pl. -sus•es.
  1. a broad-brimmed hat worn by ancient Greek travelers and hunters, often represented in art as a winged hat worn by Hermes or Mercury.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.