Auscultation
From BiblePortal Wikipedia
Webster's Dictionary [1]
(1): (n.) The act of listening or hearkening to.
(2): (n.) An examination by listening either directly with the ear (immediate auscultation) applied to parts of the body, as the abdomen; or with the stethoscope (mediate auscultation), in order to distinguish sounds recognized as a sign of health or of disease.
The Nuttall Encyclopedia [2]
Discerning by the sound whether there is or is not disease in the interior organs of the body.