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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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
-
Lamplighters didn’t have their health benefits tied to their ability to go light lamps.—
John Werner,
Forbes.com,
31 May 2025
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Or for a more structured look, try a couple of portable LED table lamps, like the Zafferano Poldina Pro Lamp ($175 from Amazon) or the Setago Rechargeable Lamp ($225 from Hawkins New York).—
The Washington Post,
San Diego Union-Tribune,
31 May 2025
Noun
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When light strikes the interface between two materials with different refractive indices—such as glass and air—some of the light is reflected while the rest is transmitted through the material.—
Mark Sparrow,
Forbes.com,
6 June 2025
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Both wars have gotten demonstrably worse with no sign of light at the end of the tunnel.—
Gary Franks,
Hartford Courant,
6 June 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 10 Jun. 2025.
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