guard dog

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guard dog

large, aggressive dog trained to attack intruders; usually German shepherd dogs, Dobermanns, Rottweilers, Bull terriers. See also dog.
References in periodicals archive ?
I'll soon be adding another Pyr to the ranks of guard dogs on my farm, and hope to raise a litter in the future.
Unlike guard dogs, pepos aren't trained to attack, but rather protect at the sound from the owner.
He also insisted his pooches are pets, not guard dogs.
The nine-month-old was destined for the guard dog training unit of the Ministry of Aircraft Production at Staverton Court, Gloucestershire, before getting a posting with the US military in the UK.
ON THE DEFENSIVE Security man with guard dog patrol near castle, right, yesterday
The dogs they hold are on their way to Tanzania to become the nucleus of a breeding programme for guard dogs to protect livestock from predators.
ATTACK: A & P Melvin Plant Hire Ltd on Commercial Road, Bromborough, where three guard dogs escaped and attacked passers-by.
Its new Guard Dog ammunition is both full metal jacket and expanding.
A GUARD dog who has 'trained' passers-by to throw a ball for him to chase as he whiles away the hours guarding a building yard is set to become a star of the screen.
My favourite part was in the Mermaid Shopping Centre when Arthur, Ace's dad, was bitten on the backside by Love and Hate, Thumper's two guard dogs, while he was playing his unusual Stroh violin and trying to outrun the two dogs at the same time.
There are also other guard dogs specifically bred for guarding purposes.
JEDDAH: The dog may not be the most popular animal in this part of the world, but when it comes to guard dogs some people have made them man's best friend.