Relating to or done using an audiometer, the instrument that measures hearing.
From audiometer + -ic (suffix meaning 'relating to or characterized by'). The adjective form lets us describe things connected to the measurement of hearing.
Audiometric testing has become so standardized that an audiologist in Tokyo can compare results with one in Toronto using the exact same procedures—this precision is why audiometric data follows international protocols established in the 1960s.
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