lumen
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British pronunciation
/lˈuːmɛn/

Definition & Meaning of "lumen"

Lumen
01

a cavity or passage in a tubular organ

02

a unit measuring the brightness of light

example
Example
click on words
The projector has a high lumen output, making it perfect for outdoor movie nights.
When choosing a flashlight, consider the lumen rating to determine its brightness.
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