'audiometer' originates from New Latin/modern formation combining Latin 'audire' (to hear) and Greek 'metron' (measure).

'audiometer' was formed in the late 19th to early 20th century as a technical coinage from the combining forms 'audio-' (from Latin 'audire') and '-meter' (from Greek 'metron'), and was adopted into English usage for instruments that measure hearing.

Initially coined to mean 'an instrument for measuring hearing,' the term has retained that specific technical meaning into modern usage.