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Meaning of word lumen from English dictionary with examples, synonyms and antonyms.
lumen noun
Meaning : 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
Meaning : A cavity or passage in a tubular organ.
Example :
The lumen of the intestine.
Lumen meaning in Bengali (Bangla).