test in which the stem of a vibrating tuning fork is placed on the midline of the head to ascertain in which ear the sound is heard by bone conduction. The sound will be perceived in the affected ear when a unilateral conductive hearing loss is present or in the unaffected ear when there is a unilateral sensorineural hearing loss. The result of this test is combined with the result of the Rinne test to interpretation of the type of hearing loss.