What is the meaning of Crackle?

A prolonged, frequent cracking sound; a fizzing, popping sound.

A style of glaze giving the impression of many small cracks.

The fifth derivative of the position vector with respect to time (after velocity, acceleration, jerk, and jounce), i.e. the rate of change of jounce.

Synonym of crackling (crispy rind of roast pork)

To make a prolonged, frequent cracking sound which sounds like fizzing or popping.

Misspelling of cackle.

Source: wiktionary.org