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Vocabulary Entry
lumen
|noun • noun
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N
noun
A unit of measurement for luminous flux or the amount of light emitted by a source.
Example Sentences
"The lamp emits 800 lumens of light, making it suitable for a living room."
"LED bulbs are available in various lumen outputs for different lighting needs."
"The brightness of the projector is measured in lumens, which affects image clarity."
N
noun
The inside space of a tubular structure or organ.
Example Sentences
"The lumen of the intestine can be affected by various medical conditions."
"The blood flows through the lumen of the blood vessels."
"During the procedure, the doctor examined the lumen of the artery for any blockages."