Definition of 'lumen'

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Definitions of 'lumen'

1. (noun) lumen, lm
a unit of luminous flux equal to the amount of light given out through a solid angle of 1 steradian by a point source of 1 candela intensity radiating uniformly in all directions

2. (noun) lumen
a cavity or passage in a tubular organ
"the lumen of the intestine"

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'lumen' - Nearby Entries
lumbosacral lumbosacral plexus lumbus lumen luminal luminance luminance unit

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