English noun: hearing aid | |||
1. | hearing aid (artifact) an electronic device that amplifies sound and is worn to compensate for poor hearing | ||
Synonyms | deaf-aid | ||
Broader (hypernym) | electronic device | ||
2. | hearing aid (artifact) a conical acoustic device formerly used to direct sound to the ear of a hearing-impaired person | ||
Synonyms | ear trumpet | ||
Broader (hypernym) | acoustic device | ||