Rinne's test

Rinne's test
Rin·ne's test 'rin-əz- or Rin·ne test 'rin-ə- n a test for determining a subject's ability to hear a vibrating tuning fork when it is held next to the ear and when it is placed on the mastoid process with diminished hearing acuity through air and somewhat heightened hearing acuity through bone being symptomatic of conduction deafness
Rinne Heinrich Adolf R. (1819-1868)
German otologist. Rinne engaged in private medical practice before accepting a position at a public asylum. He published a notable work on the vocal organs and the development of speech in 1850. In 1855 in a treatise on the physiology of the human ear he introduced Rinne's test for hearing loss.

* * *

a test to determine whether deafness is conductive or sensorineural. A vibrating tuning fork is held first in the air, close to the ear, and then with its base placed on the bone (mastoid process) behind the ear. If the sound conducted by air is heard louder than the sound conducted by bone the test is positive and the deafness sensorineural; a negative result, when the sound conducted by bone is heard louder, indicates conductive deafness.
H. A. Rinne (1819-68), German otologist

Medical dictionary. 2011.