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“luminous flux”
The rate of flow of radiant energy, expressed by brightness that is emitted in a unit of solid angles by a uniform point source with intensities of one candela or the base unit of beaming intensity or the power emitted by a source of illumination: Dr. Young and the scientists measured the luminous flux using the latest equipment designed to indicate in lumen the rate or speed of light transmission.
This entry is located in the following units:
fluct-, flucti-, -flux, flu-, flum-, -fluent, -fluence
(page 7)
lumen-, lumin-, lum-
(page 4)