as in lamp
something that provides illumination
at the time, a spermaceti candle was the brightest indoor illuminant available
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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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Best Wayfair Bedroom Decor Deals Along with furniture and bedding, there are tons of deals on bedroom decor, including mirrors, rugs, faux plants, and lamps.—
Bridget Degnan,
Better Homes & Gardens,
8 May 2025
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The two companies made products such as speakers built into lamps and picture frames, and speakers designed specifically to sit on bookshelves.—
James Peckham,
PC Magazine,
7 May 2025
Noun
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In this light, losing one’s memory is tantamount to losing one’s sense of self.—
Marion Renault,
The Atlantic,
13 May 2025
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As darkness descends, Galapagos sharks circle the ship, flitting in and out of the light in search of a meal.—
Duncan Madden,
Forbes.com,
13 May 2025
Noun
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There’s a marble bench, where most of the play’s action occurs, and the gorgeous lighting design by Masha Tsimring, along with elements like rain, snow, mist and fog, offer a sense of time passing.—
Chad Jones,
Mercury News,
10 May 2025
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In other words, skip the elaborate smart lighting systems and choose affordable LED bulbs and fixtures that do the job just as well.—
Kristine Gill,
Better Homes & Gardens,
10 May 2025
Noun
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Others are more like kitchen drawers overflowing with odds and ends: candle stubs, matchbooks, lids to missing jars, takeout menus from restaurants that shut down during Covid.—
A.O. Scott,
New York Times,
2 May 2025
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Like crying, but on a bouclé sofa, ideally with a candle line dropping Friday.—
Remy Blumenfeld,
HollywoodReporter,
1 May 2025
Cite this Entry
“Illuminant.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/illuminant. Accessed 17 May. 2025.
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