Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio.
Gr. Myth. sister of Philomela and wife of Tereus, transformed into a swallow by the gods
Origin: L from Glassical Greek Proknē
Used by arrangement with John Wiley & Sons, Inc.
The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
noun Greek Mythology
An Athenian princess who avenged the betrayal and cruelty of her husband, Tereus, by killing their son. She and her sister Philomela were changed into swallows as Tereus pursued them.