1. Noun.  Any heavier-than-air aircraft optimised for unpowered flight; a sailplane.
  2. Noun.  A pilot of glider aircraft.
  3. Noun.  Anything that glides, especially an animal or aircraft.
  4. Noun.  (mathematics) In the Game of Life cellular automaton, a particular configuration of five cells that recurs periodically at fixed offsets and appears to "walk" across the grid.

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This entry was last updated on RefTopia from its source on 3/20/2012.