permanent threshold shift


permanent threshold shift

the irreversible hearing loss that results from exposure to intense impulse or continuous sound, as opposed to the reversible temporary threshold shift that also results from such exposure.

per·ma·nent thresh·old shift

(pĕr'mă-nĕnt thresh'ōld shift) The irreversible hearing loss that results from exposure to intense impulse or continuous sound, as opposed to the reversible temporary threshold shift that also results from such exposure.