meta. 1  Formal second-person singular (usted) imperative form of meter. 2  First-person singular (yo) present subjunctive form of meter. 3  Formal second-person singular (usted) present subjunctive form of meter. 4  Third-person singular (Ã©l, ella, also used with usted) present subjunctive form of meter.
A common condition that results in hearing loss is chronic ear infections. Certain infections during pregnancy such as syphilis and rubella may also cause hearing loss. Hearing loss is diagnosed when hearing testing finds that a person is unable to hear 25 decibels in at least one ear. Testing for poor hearing is recommended for all newborns.
On average, the most quiet sounds heard by people with their better ear are between 40 and 70 dB. People who suffer from moderate hearing loss have difficulty keeping up with conversations when not using a hearing aid.