illuminant

[ih-loo-muh-nuhnt]
noun
an illuminating agent or material.

Origin:
1635–45; < Latin illūminant- (stem of illūmināns) present participle of illūmināre to light up, brighten, equivalent to illūmin- (see illumine) + -ant- -ant

nonilluminant, noun
unilluminant, adjective
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
illuminant (ɪˈluːmɪnənt)
 
n
1.  something that provides or gives off light
 
adj
2.  giving off light; illuminating

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Example sentences
It can be used as a lubricant, illuminant, for soap and the candle industry.
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