Dictionary.net

• large sheepdog with a profuse shaggy blue-gray-and-white coat and short tail; believed to trace back to Roman occupation of Britain

2006 - WordNet 3.0
By Princeton University

• large sheepdog with a profuse shaggy blue-gray-and-white coat and short tail; believed to trace back to Roman occupation of Britain

2011 - English Dictionary Database
By DataStellar Co., Ltd