luminescence

• اسم يشير إلى انبعاث الضوء من مادة ما نتيجة مصادر غير حرارية، مثل التفاعلات الكيميائية أو العمليات البيولوجية، ويحدث عادة عند درجات حرارة منخفضة.

A noun referring to the emission of light that occurs at low temperatures and originates from nonthermal sources, such as chemical reactions or biological processes.

غير معدود

1. Cold light emissionC1formalscientific

   Emission of light that occurs at low temperatures, not caused by heat (incandescence).

   التلألؤ البارد

   • Bioluminescence in fireflies is a natural form of luminescence.
   • The glow of a jellyfish is a classic example of luminescence.
   • Certain minerals exhibit luminescence when exposed to ultraviolet light.

   المرادفاتphosphorescence

2. Nonthermal light sourceC1formalscientific

   Light produced by a substance without being heated, often through chemical, electrical, or biochemical processes.

   تَلَأْلُؤ

   • The luminescence of a glow stick comes from a chemical reaction.
   • LEDs produce luminescence through electroluminescence.
   • Phosphorescent materials store energy and release it as luminescence over time.

   الأضدادheatincandescence