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
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Emmet Apolinario, co-founder and president of Ohio Business Advisors, has sold everything from a licensed apparel shop for college sports to a disc golf retailer to a store that just sells lamp shades.—
Brandon Kochkodin,
Forbes.com,
13 Sep. 2025
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Colorful murals adorn the interior, with communal tables and high ceilings, and the outdoors has beer-keg tables and heat lamps and lots of room for patrons — and their dogs — to roam.—
John Metcalfe,
Mercury News,
13 Sep. 2025
Noun
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His sacrifice will endure as a guiding light for generations.—
Amanda Castro,
MSNBC Newsweek,
18 Sep. 2025
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Being able to generate code was finally getting a chance to shine in the bright lights of another erstwhile reason to use generative AI and LLMs.—
Lance Eliot,
Forbes.com,
18 Sep. 2025
Noun
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Let your lighting set the mood for any fall get-together with this easy craft idea.—
Claire Hoppe Norgaard,
Better Homes & Gardens,
16 Sep. 2025
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Matthew Novotny designed lighting, Alina Bokovikova designed costumes and Aaron Rumley designed sound.—
Pam Kragen,
San Diego Union-Tribune,
16 Sep. 2025
Noun
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Place the candle securely in the holder inside the pumpkin before lighting it.—
Claire Hoppe Norgaard,
Better Homes & Gardens,
16 Sep. 2025
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As the sun started setting and the evening grew darker, mourners passed around candles, using one candle to light another, and the crowd began singing prayers.—
Shambhavi Rimal,
Fort Worth Star-Telegram,
16 Sep. 2025
Cite this Entry
“Illuminant.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/illuminant. Accessed 18 Sep. 2025.
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