auscultātor, ōris, m. [ausculto].
I A hearer , listener , * Cic. Part. Or. 3, 10.—
II One who obeys : mandati, Ap. Met. 7, 16, 5.
auscultātor ōris, m ausculto, a hearer . ...
An Elementary Latin Dictionary
·noun One who practices auscultation. ...
Webster's Dictionary of the English Language