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.
Sounds you can't hear can still hurt your ears By Sarah C. P. Williams Sep. 30, 2014 , 7:15 PM A wind turbine, a roaring crowd at a football game, a jet engine running full throttle: Each of these things produces sound waves that are well below the frequencies humans can hear.