The Collaborative International Dictionary of English v.0.48:

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.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

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.
      [1913 Webster]

   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.
      [1913 Webster]

            Thou would'st have . . . melted down thy youth.
                                                  --Shak.
      [1913 Webster]

            For pity melts the mind to love.      --Dryden.
      [1913 Webster]

   Syn: To liquefy; fuse; thaw; mollify; soften.
        [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Melting \Melt"ing\, n.
   Liquefaction; the act of causing (something) to melt, or the
   process of becoming melted.
   [1913 Webster]

   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. Pressure affects the melting point
      somewhat, and if not specified the melting point is
      usually taken to be at atmospheric pressure.
      [1913 Webster]

WordNet (r) 3.0 (2006):

melting
    adj 1: becoming liquid [syn: liquescent, melting]
    n 1: 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, melting]