Answer: decomposing

AnswerCrossword Clue
decomposingDECOMPOSE, to fall to pieces
decomposingCause (something) to decay or rot
decomposing(of a dead body or other organic matter) Decay; become rotten
decomposing(of a chemical compound) Break down into component elements or simpler constituents
decomposingBreak down (a chemical compound) into its component elements or simpler constituents