 lumen |
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| 1. | [ noun ] (anatomy,zoology) a cavity or passage in a tubular organ | |
| Examples: | "the lumen of the intestine" |
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| Related terms: | cavity | |
| 2. | [ noun ] (physics) 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 | |
| Synonyms: | lm | |
| Related terms: | luminous_flux_unit | |
| Similar spelling: |
Luhman Luman |
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