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.
Sensorineural Hearing Loss. Permanent hearing loss occurs when inner ear nerves become damaged and do not properly transmit their signals to the brain. Those who suffer from this condition may complain that people seem to mumble or that they hear, but do not understand, what is being said. The aging process is a very common cause of sensorineural hearing loss. As we get older, the inner ear nerves and sensory cells gradually die.
Noise- and age-related hearing loss usually affect the part of the inner ear that converts sound waves into nerve signals. Called sensorineural hearing loss, the problem typically causes a loss of hearing at higher frequencies, including sounds associated with human speech. Conductive hearing loss, by contrast, is more common in people under 40 and occurs when the outer ear or middle ear is blocked.