hearing aid

English Thesaurus

1. a conical acoustic device formerly used to direct sound to the ear of a hearing-impaired person (noun.artifact)

hypernym	:	acoustic device,
definition	:	a device for amplifying or transmitting sound (noun.artifact)

2. an electronic device that amplifies sound and is worn to compensate for poor hearing (noun.artifact)

hypernym	:	electronic device,
definition	:	a device that accomplishes its purpose electronically (noun.artifact)