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Lumen   /lˈumən/   Listen
Lumen

noun
(pl. L. lumina, E. lumens)
1.
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.  Synonym: lm.
2.
A cavity or passage in a tubular organ.





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"Lumen" Quotes from Famous Books



... five feet or more from the floor, thus allowing the outside air to enter upwardly into the room. This plan is also adapted for filtering and cleaning the incoming air by placing cloth or other material across the lumen of the horizontal tubes to intercept dust, etc. McKinnell's ventilator is also a useful method of ventilation, especially of ...
— The Home Medical Library, Volume V (of VI) • Various


Words linked to "Lumen" :   bodily cavity, luminous flux unit, cavum, cavity


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