luminescent
  (a.)發冷光的,發光的
  lu·mi·nes·cent /-ṇt/ 形容詞
  發光的
  luminescent
  發光
  Lu·mi·nes·cent a.  Physics Shining with a light due to any of the various causes which produce luminescence.
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  luminescent
       adj : emitting light not caused by heat