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phosphorescence

Upper-Intermediate (B2)

IPA: /ˌfɒsfəˈrɛsəns/

KK: /fɑsˈfɔrɛsəns/

noun
Definition

The release of light by a substance after it has absorbed energy, which continues for a period of time even after the energy source is removed.


Example

The phosphorescence of the glow-in-the-dark stars on the ceiling amazed the children.


Conversation
Sloth A
Have you ever seen the phosphorescence in the ocean at night?
Sloth B
Yes! It's like the water is glowing, right?
Sloth A
Exactly! I always find it so magical how it lights up.
Sloth B
I know, it makes night swims feel like an adventure.

Synonyms & Antonyms
Synonyms
luminescence
glow
radiance
Antonyms
darkness
dullness
opacity
Root Explanation

Phosphorescence → It is formed from "phosphor" (from Greek "phosphoros", meaning light-bringer) and "-escence" (meaning the process of becoming). The word describes the process of becoming light-bringing or emitting light without burning.

Memory Tip

Imagine something that 'brings light' ('phosphor') and is in the process of 'becoming' ('-escence') — that's how phosphorescence means the process of emitting light.

Visually Confused Words
tribophosphorescence
hyperphosphorescence
thermophosphorescence
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