noun
indoor dog; house dog
A dog that lives primarily indoors, as opposed to an outdoor dog (室外犬). Often used when discussing breeds suitable for apartment living or dogs that are not kept outside.
See also: 室外犬
このアパートは室内犬しか飼えません。
This apartment only allows indoor dogs.
チワワは代表的な室内
Chihuahuas are a typical indoor dog breed.