source of illumination Definition

lamp, candle, flood, light, lux, eclipse, floodlight, shadow, torch, flood lamp, photoflood, oversoul, enlarger, glim, light source, ultraviolet lamp, ultraviolet source, darkness, daylight, hologram, lantern, lumen, luminary, neon, shade, shades, shadowed, shine, unit, arc light, candelabra, flashlight, illuminant, illuminator, photometer, strobe, oil, out, sunshine, cresset, enlightenment, flare, flash, highlight, illuminance, irradiation, lightness, lightning, limelight, penumbra, phase, phot, photometry, photon, phototransistor, skylight, twilight, brownout, flash photography, oils, phytotron, zodiacal light, activation, dark, fark, illuminating, intuition, lighting, reflex, activity, afterglow, air, alexandrite, battery, beacon, bell, bulb, burn, candela, chrominance, clearstory, coma, danger, diffuse, diffuser, diffusing, dosimeter, efficiency, effloresce, elm, emanate, emission, energy, fatigued, fatigues, fester, festering, fluorescence, footcandle, galo,