rales

Noun

rale (plural rales)

1. (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.
   • Michael Colot, aged fifteen days, of a strong constitution, not having been sick from the time of birth, was, on the 22nd of November, taken with a violent cough, accompanied with a rale which could be heard without recourse to auscultation.1840, CM Billard, A Treatise on the Diseases of Infants, page 416

   Synonyms:

   crackles