bob tail

• n.
  • a short or shortened tail of certain animals

    同义词： bobtail bob dock

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

    同义词： Old English sheepdog bobtail

• adj. having a short or shortened tail

  同义词： bobtail bobtailed

以上来源于: WordNet