Lumen
noun
The inside space in a tube, such as blood vessel or part of the body.
The catheter was inserted into the lumen of the artery.
Often appears as...
- arterial lumen
- intestinal lumen
Usage tips
Technical
noun
A unit of light intensity.
This LED light bulb provides 800 lumens.
Often appears as...
- light bulb lumens
- lumens of brightness
Usage tips
Technical
noun
A measure of the total amount of visible light that a source emits.
The studio lights had a lumen rating of 1000.
Often appears as...
- lumen rating
- high lumen output
Usage tips
Technical
noun
The inside space in a tube, such as blood vessel or part of the body.
The catheter was inserted into the lumen of the artery.
Often appears as...
- arterial lumen
- intestinal lumen
Usage tips
Technical
noun
A unit of light intensity.
This LED light bulb provides 800 lumens.
Often appears as...
- light bulb lumens
- lumens of brightness
Usage tips
Technical
noun
A measure of the total amount of visible light that a source emits.
The studio lights had a lumen rating of 1000.
Often appears as...
- lumen rating
- high lumen output
Usage tips
Technical
Definition 1 of 3
Pro Tip 1/3Biological Tubes
Refers to interior of tubular structures in the body like veins.
The surgeon examined the lumen to make sure there were no blockages.
Pro Tip 2/3Not Always Visible
Understanding 'lumen' may involve medical images, as it's internal.
The X-ray displayed a clear image of the lumen of the esophagus.
Pro Tip 3/3Health Indicator
A clear lumen can indicate good health; blockages can signal problems.
Her healthy arteries had a wide lumen, allowing smooth blood flow.
Pro Tip 1/3Biological Tubes
Refers to interior of tubular structures in the body like veins.
The surgeon examined the lumen to make sure there were no blockages.
Pro Tip 2/3Not Always Visible
Understanding 'lumen' may involve medical images, as it's internal.
The X-ray displayed a clear image of the lumen of the esophagus.
Pro Tip 3/3Health Indicator
A clear lumen can indicate good health; blockages can signal problems.
Her healthy arteries had a wide lumen, allowing smooth blood flow.
Pro Tip 1/3Biological Tubes
Refers to interior of tubular structures in the body like veins.
The surgeon examined the lumen to make sure there were no blockages.
Pro Tip 2/3Not Always Visible
Understanding 'lumen' may involve medical images, as it's internal.
The X-ray displayed a clear image of the lumen of the esophagus.
Pro Tip 3/3Health Indicator
A clear lumen can indicate good health; blockages can signal problems.
Her healthy arteries had a wide lumen, allowing smooth blood flow.
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Video examples
Paul Ewald: Can we...
gets into our intestinal tract. It causes fluid to flow from the cells that line our intestine into the lumen, the internal chamber of our intestine, and then that fluid goes the only way it can, which is out the other end. And it flushes out thousands of different other competitors that would otherwise make life difficult for the Vibrios.
Video examples
Can we domesticate...
cells that line our intestine into the lumen the the internal chamber of our intestine and then that fluid goes on when we can which is out the other end and it flushes out thousands of different other competitors that would otherwise make life difficult for the vibrios so what happens if you've got an
Video examples
Earthrise: The Story of...
desert the skies are enormous li lumen aided by stars more stars than you can imagine
Video examples
Paul Ewald: Can we...
gets into our intestinal tract. It causes fluid to flow from the cells that line our intestine into the lumen, the internal chamber of our intestine, and then that fluid goes the only way it can, which is out the other end. And it flushes out thousands of different other competitors that would otherwise make life difficult for the Vibrios.
Video examples
Can we domesticate...
cells that line our intestine into the lumen the the internal chamber of our intestine and then that fluid goes on when we can which is out the other end and it flushes out thousands of different other competitors that would otherwise make life difficult for the vibrios so what happens if you've got an
Video examples
Earthrise: The Story of...
desert the skies are enormous li lumen aided by stars more stars than you can imagine
Example 1 of 3
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