Pronunciation: (shel'drāk"), [key]
—pl. -drakes, (esp. collectively) -drake.
1. any of several Old World ducks of the genus Tadorna, certain species of which have highly variegated plumage.
2. any of various other ducks, esp. the goosander or merganser.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.