అర్థం : 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.
పర్యాయపదాలు : lm
అర్థం : A cavity or passage in a tubular organ.
							ఉదాహరణ : 
							The lumen of the intestine.
							
Lumen meaning in Telugu.