[1] : The Collaborative International Dictionary of English v.0.48

glider \glid"er\, n.
   1. one who, or that which, glides.
      1913 webster

   2. a heavier-than-air flying machine similar to an airplane,
      but without an engine. it is typically towed to a high
      altitide by a powered aircraft and then glides to earth
      with no other source of power.
      pjc

   3. a type of seat used on porches or in gardens, which is
      mounted on a frame so that it may glide forward and
      backward.
      pjc

[2] : WordNet (r) 2.0

glider
     n : aircraft supported only by the dynamic action of air against
         its surfaces syn: sailplane
see also:
sailplane 

Glider >> G Words
Glider, definition of term: Glider
glider_pag1.html

Hang Glider >> H Words
Hang Glider, definition of term: Hang Glider
hang+glider_pag1.html