|  | 
Medical Definition of Whistling rale
1. A whistling sound caused by air moving through a viscid secretion narrowing the lumen of a bronchus. Synonym: whistling rale. (05 Mar 2000)
|  | 
1. A whistling sound caused by air moving through a viscid secretion narrowing the lumen of a bronchus. Synonym: whistling rale. (05 Mar 2000)