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.
Deafness is caused by damage to the structures within the cochlea (For an explanation of the ear see RNID information and resources â behind the scenes). This damage results in loss of both frequency sensitivity and increase in hearing threshold i.e. noises need to be louder to be able to hear them.