lumena ( synonym found)
Definition of lumena:

°In the International System of Units, the derived unit of luminous flux; the amount of light that falls on a unit area at unit distance from a source of one candela. Symbol: lm.
°The cavity or channel within a tube or tubular organ.
Definition of lumena:

°In the International System of Units, the derived unit of luminous flux; the amount of light that falls on a unit area at unit distance from a source of one candela. Symbol: lm.
°The cavity or channel within a tube or tubular organ.
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