Function: noun
Date: 1952
: a dog trained to alert its deaf or hearing-impaired owner to sounds (as of a doorbell, alarm, or telephone) ― called also hearing ear dog
Function: noun
Date: 1952
: a dog trained to alert its deaf or hearing-impaired owner to sounds (as of a doorbell, alarm, or telephone) ― called also hearing ear dog
Merriam Webster Collegiate English Dictionary. Merriam Webster - Энциклопедический словарь английского языка. 2012