illuminant
illuminant
nounDefinition of ILLUMINANT
something that provides illumination <at the time, a spermaceti candle was the brightest indoor illuminant available>
Related Words arc lamp (also arc light), candelabra, candelabrum, candle, chandelier, dark lantern, electric, flare, flash, flashbulb, flashcube, flashlight, floodlight, fluorescent lamp, gaslight, gasolier, girandole, headlight, incandescent lamp, klieg light (or kleig light), lantern, light bulb, lighthouse, lighting, sconce, spotlight, streetlight, sun lamp
Learn More About
Ask The Editor Videos
Seen & Heard 
What made you want to look up illuminant? Please tell us where you read or heard it (including the quote, if possible).
