'Rhonchus' definitions:

Definition of 'rhonchus'

From: WordNet
noun
A sound like whistling or snoring that is heard with a stethoscope during expiration as air passes through obstructed channels

Definition of 'Rhonchus'

From: GCIDE
  • Rhonchus \Rhon"chus\, n.; pl. Rhonchi. [L., a snoring, a croaking.] (Med.) An adventitious whistling or snoring sound heard on auscultation of the chest when the air channels are partially obstructed. By some writers the term rhonchus is used as equivalent to r[^a]le in its widest sense. See R[^a]le. [1913 Webster]