Noun
Jack Russell terrier (plural Jack Russell terriers)
A type of small dog, usually brown and white in colour, often used by farmers for rodent control.
Donnie Saunders says it's worth every penny for her Jack Russell terrier. Source: Internet
Heidi is a small Jack Russell Terrier. Source: Internet
If Miss Pearl isn’t sitting quietly at his feet, the Jack Russell Terrier is perched contentedly on his shoulder. Source: Internet