Burn·ing, a.
  1. That burns; being on fire; excessively hot; fiery.
  2. Consuming; intense; inflaming; exciting; vehement; powerful; as, burning zeal.
     Like a young hound upon a burning scent.   --Dryden.
  Burning bush Bot., an ornamental shrub (Euonymus atropurpureus), bearing a crimson berry.
  Eu·on·y·min n. Med. A principle or mixture of principles derived from Euonymus atropurpureus, or spindle tree.
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  Euonymus atropurpureus
       n : deciduous shrub having purple capsules enclosing scarlet
           seeds [syn: wahoo, burning bush]