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lumen


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n.1. the space within a tubular or sac-like part, such as a blood vessel, the intestine, or the stomach. 2. the SI unit of luminous flux, equal to the amount of light emitted per second in unit solid angle of 1 steradian by a point source of 1 candela. Symbol: lm.

1. the space within a tubular or sac-like part, such as a blood vessel, the intestine, or the stomach. 2. the SI unit of luminous flux, equal to the amount of light emitted per second in unit solid angle of 1 steradian by a point source of 1 candela. Symbol: lm.

Subjects: Medicine and Health.


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