from The American Heritage® Dictionary of the English Language, 4th Edition
- n. An abnormal respiratory sound characterized by fine crackles.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. 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.
French râle, from râler, to make a rattling sound in the throat, from Old French racler, to scrape, rattle; see raclette.(American Heritage® Dictionary of the English Language, Fourth Edition)
From French râle. (Wiktionary)