fluorescence
/flɔːˈresns/noun
उच्चारण फ़्लॉरेस्न्स
प्रतिदीप्ति
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[U] technical
the production of light by a substance when it is exposed to radiation; the light produced
प्रतिदीप्ति
- the fluorescence of some minerals under UV light
- Scientists studied the fluorescence of the dye under ultraviolet light.
- The jewel's fluorescence glowed brightly under the lamp.
+ 2 more examples
- Fluorescence is used in tubelights to produce light.
- Banknotes have a feature that shows fluorescence under UV light.
Synonyms luminescence glow radiance phosphorescence
◇Word family
≈Synonyms and antonyms
Synonyms
AaSpelling
flu·o·res·cence
With -uo- (not 'flourescence') and -scence.
यह बहुत पूछा जाता है: flu-o-res-cence, -uo- के साथ ('flourescence' गलत है) और -scence।
?Which word?
Keep apart fluorescent and flour (powder from grain) and flower.
Fluorescent, flour (अनाज का आटा) और flower को अलग रखिए।
“Collocations, idioms and sayings
Fluorescent lights or tube lights, fluorescent colours (very bright).
Collocations: fluorescent lights या tube lights, fluorescent colours (बहुत चमकीले)।
✓In the exam
General knowledge
Science: fluorescence stops when the light source is removed; phosphorescence continues to glow after the light is removed (glow-in-the-dark toys); bioluminescence is light produced by living things (fireflies).
विज्ञान में प्रतिदीप्ति प्रकाश-स्रोत हटाने पर रुक जाती है; स्फुरदीप्ति (phosphorescence) प्रकाश हटाने के बाद भी चमकती रहती है (अँधेरे में चमकने वाले खिलौने); जैवदीप्ति (bioluminescence) जीवों द्वारा उत्पन्न प्रकाश है (जुगनू)।