any of a breed of large, muscular dog with a long, straight, often black coat, formerly much used in water rescue work and now usually a guard dog or a watchdog
Origin:
after Newfoundland
island of Canada, off the E coast: 43,548 sq mi (112,789 sq km)
Newfoundland and Labrador: abbrev. NF, Nfld, Newf, or Nfd