as in lamp
something that provides illumination
at the time, a spermaceti candle was the brightest indoor illuminant available
Synonyms & Similar Words
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Example Sentences
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Recent Examples of illuminant
Related Stories For the Judge LED, users can choose seven light sources from a selection of different temperatures that fit industry standards, including a directional daylight output with the standard illuminant D65.
—
Sarah Jones, Sourcing Journal, 16 Jan. 2025
Distilling rock oil produced multiple interesting compounds, one of which looked like an ideal illuminant.
—Charles R. Morris, WSJ, 21 June 2018
Sarah Jones, Sourcing Journal, 16 Jan. 2025
Distilling rock oil produced multiple interesting compounds, one of which looked like an ideal illuminant.
—Charles R. Morris, WSJ, 21 June 2018
Recent Examples of Synonyms for illuminant
Noun
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As far as styling your lamps and lights, Burke said two strong trends are coming through in 2022.—
Kaitlyn Keegan,
Hartford Courant,
15 Aug. 2025
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That may be plenty for a lamp but not for appliances that draw large amounts of power quickly or over long periods.—
Nafeesah Allen,
Better Homes & Gardens,
14 Aug. 2025
Noun
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When the lights got brighter at MetLife Stadium, Dart once again showed why the Giants traded back into the first round of this year's draft to select Dart.—
Justin Grasso,
MSNBC Newsweek,
18 Aug. 2025
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The band then charged off the stage to a round of applause as the lights went down and the movie began.—
Andrew McGowan,
Variety,
17 Aug. 2025
Noun
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Remember, a tent offers no protection from lighting.—
NC Weather Bot,
Charlotte Observer,
15 Aug. 2025
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McCarty is also in the process of getting LED lighting installed.—
Molly Morrow,
Chicago Tribune,
15 Aug. 2025
Noun
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Killingworth’s The Rustic Barn has created two soy candles specifically for Birch & Twine.—
Sarah Kyrcz,
Hartford Courant,
6 Aug. 2025
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Noem is pleased — but her Botox falters, and her face melts like a hot candle.—
Dave Nemetz,
TVLine,
6 Aug. 2025
Cite this Entry
“Illuminant.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/illuminant. Accessed 22 Aug. 2025.
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