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illuminant

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noun il·lu·mi·nant \-nənt\

Definition of illuminant

  1. :  an illuminating device or substance



Examples of illuminant

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



1644

First Known Use of illuminant

1644


Medical Dictionary

illuminant

play
noun il·lu·mi·nant \-nənt\

Medical Definition of illuminant

  1. :  an illuminating device or substance (as for a microscope)




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