shaking (

     adj : vibrating slightly and irregularly; as e.g. with fear or
           cold or like the leaves of an aspen in a breeze; "a
           quaking bog"; "the quaking child asked for more";
           "quivering leaves of a poplar tree"; "with shaking
           knees"; "seemed shaky on her feet"; "sparkling light
           from the shivering crystals of the chandelier";
           "trembling hands" [syn: quaking, quivering, shaky,
            shivering, trembling]
     n 1: the act of causing something to move up and down (or back
          and forth) with quick movements
     2: a shaky motion; "the shaking of his fingers as he lit his
        pipe" [syn: shakiness, trembling, quiver, quivering,
         vibration, palpitation]