crepitation

noun

1. The act of crepitating or crackling.

   “When she returned the room was silent again, save for the faint crepitation of his chair and the occasional clink of a bottle.”

   “Silence again, save for the crepitation of the flames, the fall of an ember, the murmur of the current.”

2. A grating or crackling sensation or sound, as that produced by rubbing two fragments of a broken bone together, or by pressing upon cellular tissue containing air.
3. A crepitant rale.