assistance dog

US /əˈsɪs.təns dɔːɡ/
UK /əˈsɪs.təns dɔːɡ/
"assistance dog" picture
1.

a dog that has been specially trained to help a person with a disability

:
An assistance dog can provide invaluable support to people with visual impairments.
The restaurant welcomed the customer and her assistance dog without hesitation.