Illuminant - definition, pronunciation

Amer.   American pronunciation of the word illuminant
Brit.  |ɪˈl(j)uːmɪnənt|  British pronunciation of the word illuminant

noun

- something that can serve as a source of light

Examples

...at the time, a spermaceti candle was the brightest indoor illuminant available...

See also:  WebsterWiktionaryLongman