Crepitation
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Look up crepitation in Wiktionary, the free dictionary.
Crepitation refers to situations where noises are produced by the rubbing of parts one against the other, as in:
- Crepitus, a crunching sensation felt in certain medical problems
- Rales or crackles, abnormal sounds heard over the lungs with a stethoscope
- A mechanism of sound production in grasshoppers during flight. Also called "wing snapping".