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

backfire \back"fire`\ back-fire \back"-fire`\, v. i.
   1. engin. to have or experience a back fire or back fires;
      -- said of an internal-combustion engine.
      webster 1913 suppl.

   2. of a bunsen or similar air-fed burner, to light so that
      the flame proceeds from the internal gas jet instead of
      from the external jet of mixed gas and air. --
      back"-fir`ing, n.
      webster 1913 suppl.
see also:
back"-fir`ing 

Backfiring >> B Words
Backfiring, definition of term: Backfiring
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