noun
rales; crackles; abnormal lung sounds
Medical term for abnormal rattling or crackling sounds heard through a stethoscope, indicating fluid or secretion in the airways.
from German Rasselgeräusch
医師は聴診器で患者のラッセル音を確認した。
The doctor confirmed the patient's rales with a stethoscope.
肺炎
When you have pneumonia, crackles may be heard.