Old English sheepdog: Meaning and Definition of

Old' Eng'lish sheep'dog

Pronunciation: [key]
  1. one of an English breed of large working dogs having a long, shaggy, gray or blue-merle and white coat that hangs over the eyes, and a bobbed tail, originally developed to drive sheep and cattle.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.