Source : Webster's Revised Unabridged Dictionary (1913)

Dissolver \Dis*solv"er\, n.
   One who, or that which, has power to dissolve or dissipate.

         Thou kind dissolver of encroaching care. --Otway.

Source : WordNet®

dissolver
     n : a liquid substance capable of dissolving other substances;
         "the solvent does not change its state in forming a
         solution" [syn: {solvent}, {dissolvent}, {dissolving
         agent}, {resolvent}]