Source : Webster's Revised Unabridged Dictionary (1913)

Glade \Glade\, n. [Prob. of Scand. origin, and akin to glad, a.;
   cf. also W. golead, goleuad, a lighting, illumination, fr.
   goleu light, clear, bright, goleu fwlch glade, lit., a light
   or clear defile.]
   1. An open passage through a wood; a grassy open or cleared
      space in a forest.

            There interspersed in lawns and opening glades.
                                                  --Pope.

   2. An everglade. [Local, U. S.]

   3. An opening in the ice of rivers or lakes, or a place left
      unfrozen; also, smooth ice. [Local, U. S.]

   {Bottom glade}. See under {Bottom}.

   {Glade net}, in England, a net used for catching woodcock and
      other birds in forest glades.

Source : WordNet®

glade
     n : a tract of land with few or no trees in the middle of a
         wooded area [syn: {clearing}]