Source : Webster's Revised Unabridged Dictionary (1913)

Glow \Glow\ (gl[=o]), v. i. [imp. & p. p. {Glowed} (gl[=o]d); p.
   pr. & vb. n. {Glowing}.] [AS. gl[=o]wan; akin to D. gloeijen,
   OHG. gluoen, G. gl["u]hen, Icel. gl[=o]a, Dan. gloende
   glowing. [root]94. Cf. {Gloom}.]
   1. To shine with an intense or white heat; to give forth
      vivid light and heat; to be incandescent.

            Glows in the stars, and blossoms in the trees.
                                                  --Pope.

   2. To exhibit a strong, bright color; to be brilliant, as if
      with heat; to be bright or red with heat or animation,
      with blushes, etc.

            Clad in a gown that glows with Tyrian rays.
                                                  --Dryden.

            And glow with shame of your proceedings. --Shak.

   3. To feel hot; to have a burning sensation, as of the skin,
      from friction, exercise, etc.; to burn.

            Did not his temples glow In the same sultry winds
            and acrching heats?                   --Addison.

            The cord slides swiftly through his glowing hands.
                                                  --Gay.

   4. To feel the heat of passion; to be animated, as by intense
      love, zeal, anger, etc.; to rage, as passior; as, the
      heart glows with love, zeal, or patriotism.

            With pride it mounts, and with revenge it glows.
                                                  --Dryden.

            Burns with one love, with one resentment glows.
                                                  --Pope.

Source : WordNet®

glowing
     n : the amount of electromagnetic radiation leaving or arriving
         at a point on a surface [syn: {radiance}, {glow}]

glowing
     adj 1: softly bright or radiant; "a house aglow with lights";
            "glowing embers"; "lambent tongues of flame"; "the
            lucent moon"; "a sky luminous with stars" [syn: {aglow(p)},
             {lambent}, {lucent}, {luminous}]
     2: highly enthusiastic; "glowing praise"