RALES

noun

1. (now chiefly in plural) An abnormal clicking, rattling or crackling sound, made by one or both lungs and heard with a stethoscope, caused by the popping open of airways collapsed by fluid or exudate, or sometimes by pulmonary edema.

noun

1. Abnormal clicking, rattling or crackling sound heard from the lungs, often audible only with a stethoscope.