Dictionary Check: lumen
"lumen" is a valid word!
Scrabble
7
points
Words with Friends
11
points
Definition
noun
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
noun
a cavity or passage in a tubular organ
Example:
"the lumen of the intestine"
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