Source : Webster's Revised Unabridged Dictionary (1913)

Melt \Melt\, v. t. [imp. & p. p. {Melted} (obs.) p. p. {Molten};
   p. pr. & vb. n. {Melting}.] [AS. meltan; akin to Gr.
   me`ldein, E. malt, and prob. to E. smelt, v. [root]108. Cf.
   {Smelt}, v., {Malt}, {Milt} the spleen.]
   1. To reduce from a solid to a liquid state, as by heat; to
      liquefy; as, to melt wax, tallow, or lead; to melt ice or
      snow.

   2. Hence: To soften, as by a warming or kindly influence; to
      relax; to render gentle or susceptible to mild influences;
      sometimes, in a bad sense, to take away the firmness of;
      to weaken.

            Thou would'st have . . . melted down thy youth.
                                                  --Shak.

            For pity melts the mind to love.      --Dryden.

   Syn: To liquefy; fuse; thaw; mollify; soften.

Melting \Melt"ing\, n.
   Liquefaction; the act of causing (something) to melt, or the
   process of becoming melted.

   {Melting point} (Chem.), the degree of temperature at which a
      solid substance melts or fuses; as, the melting point of
      ice is 0[deg] Centigrade or 32[deg] Fahr., that of urea is
      132[deg] Centigrade.

Melting \Melt"ing\ a.
   Causing to melt; becoming melted; -- used literally or
   figuratively; as, a melting heat; a melting appeal; a melting
   mood. -- {Melt"ing*ly}, adv.

Source : WordNet®

melting
     adj : becoming liquid [syn: {liquescent}]
     n : the process whereby heat changes something from a solid to a
         liquid; "the power failure caused a refrigerator melt
         that was a disaster"; "the thawing of a frozen turkey
         takes several hours" [syn: {thaw}, {melt}, {thawing}]