luminescence
pronunciation
How to pronounce luminescence in British English:
UK [ˌlu:mɪˈnesns]
How to pronounce luminescence in American English:
US [ˌluməˈnɛsəns]
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- Noun:
- light not due to incandescence; occurs at low temperatures
- light from nonthermal sources
Word Origin
- luminescence (n.)
- 1884, from Latin lumen (genitive luminis) "light" (see luminous) + -escence. Fluorescence and Phosphorescence -- Prof. E. Wiedmann has made a new study of these phenomena. He proposes the general name luminescence for evolutions of light which do not depend on the temperature of the substance concerned. ["Photographic News," April 20, 1888]
Example
- 1. Now , a new study shows how this predator , the world 's smallest shark , powers its luminescence .
- 2. The gold nanoparticles , shaped like sea urchins , put into the leaves of bacopa caroliniana plants cause chlorophyll to produce the reddish luminescence .
- 3. A new kind of energy-efficient light bulb may provide an alternative to existing compact fluorescent ( cfl ) and light emitting diode ( led ) bulbs . The new bulbs , made by seattle-based vu1 , use a technology called electron stimulated luminescence ( esl ) to produce incandescent-quality light .
- 4. The new kind of artificial light consists of a bulb filled with inert gas and a small amount of sulfur that is bombarded by microwaves to produce luminescence .