crackling

1. The production of a succession of slight sharp snapping noises.
2. cracklings The crisp bits that remain after rendering fat from meat or frying or roasting the skin, especially of a pig or a goose.

[Sense 2, Dutch krakeling, from obsolete Dutch kraeckelingh, from Middle Dutch krākelinc, from krāken, to crack. See cracknel.]

Crisp rind of a joint of pork after baking or roasting.

Term used in the United States to describe wine that's only slightly sparkling, much less so than champagne. Standard champagne is measured at 6 atmospheres of pressure, whereas crackling wines have only 1 to 2 atm, similar to Italian frizzante and French petillant wines. Even though a crackling wine's effervescence sometimes occurs naturally, it's often created by pumping in carbon dioxide. The crackling style is popular with moderately priced red, white, and particularly rosé wines such as Portugal's Lancers and Mateus. Occasionally, the word crackling appears in the wine's name, as with Paul Masson Vineyards' Crackling Rosé and Crackling Chablis.

Proteinaceous residues after fat is melted and run off during offal processing. Called also greaves.

The noun has one meaning:

Meaning #1: the sharp sound of snapping noises
  Synonyms: crackle, crepitation

The adjective crackling has one meaning:

Meaning #1: having a series of short sharp noises
  Synonym: snapping