as in lamp
something that provides illumination
at the time, a spermaceti candle was the brightest indoor illuminant available
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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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The heat lamp is focused on Juan Soto in Queens right now.—
Chris Branch,
New York Times,
22 May 2025
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Use cable ties to secure any dangling cords from lamps, computers, TVs or other electronics.—
Cody Godwin,
USA Today,
22 May 2025
Noun
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These were the words of an elderly Creole woman from New Orleans, who spoke to me recently in light of the elevation of Robert Prevost to office of the Holy See.—
Darryl Barthé,
Chicago Tribune,
25 May 2025
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These half-sized classic window coverings let in ample light for prep work, while adding just enough privacy and charm.—
Lauren Thomann,
Better Homes & Gardens,
25 May 2025
Noun
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This is done by using real-time data and user preferences to coordinate individual AI agents like the smart thermostat, the lighting or even appliances.—
Pradeep Kumar Muthukamatchi,
Forbes.com,
4 June 2025
-
Remember, a tent offers no protection from lighting.—
CA Weather Bot,
Sacbee.com,
4 June 2025
Noun
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Lazard popped the question on a beach in Montauk, N.Y., getting down on one knee in a sandy pathway created using candles and white bouquets.—
Bailey Richards,
People.com,
28 May 2025
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Continually high interest rates and economic uncertainty are further diminishing consumer interest in non-essential products such as fragrances and candles.—
Trefis Team,
Forbes.com,
28 May 2025
Cite this Entry
“Illuminant.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/illuminant. Accessed 7 Jun. 2025.
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