"Medium dogs" refers to dogs that are neither small nor large in size. They are typically bigger than small dogs, such as Chihuahuas, but smaller than large breeds, like Great Danes.
Sentences with «medium dogs»
Give 1 tsp twice daily for small dogs, 2 tsp twice daily for medium dogs and 3 tsp twice daily for large dogs. (dogsnaturallymagazine.com)
Most large dog breeds and even medium dog breeds require homes with back yards to exercise in. (caninejournal.com)