plural of luminant

simple past tense and past participle of luminate

present participle of luminate

(astronomy) That emits significant amounts of radio waves; radio-bright.

In photometry, the measure of the power of light as perceived by the human eye, in proportion to the power at each wavelength.

plural of luminous energy

Not capable of producing light, but possibly capable of reflecting light from another source.

(physics) The radiant energy of the visible portion of a spectrum of light

(physics) A measure of the power emitted by a source of light; equal to the flux density per solid angle

plural of luminous intensity