De·com·pose v. t. [imp. & p. p. Decomposed p. pr. & vb. n. Decomposing.]  To separate the constituent parts of; to resolve into original elements; to set free from previously existing forms of chemical combination; to bring to dissolution; to rot or decay.
 decomposing
      adj : becoming rotten; "a field covered with thousands of
            decomposing bodies"; "John Brown's body lies
            a-moldering in the grave" [syn: moldering, mouldering]