molten

adjective

mol·​ten ˈmōl-tᵊn How to pronounce molten (audio)
Synonyms of molten
1
: fused or liquefied by heat : melted
molten lava
2
: having warmth or brilliance : glowing
… the molten sunlight of warm skies …—T. B. Costain
3
obsolete : made by melting and casting

Examples of molten in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The molten iron could then be fed into the facility’s basic oxygen furnaces to create steel, according to the report. — Maya Wilkins, Chicago Tribune, 6 Sep. 2026 Another important part of the process is that only a small volume of the material is molten at any one time. — Prabhat Ranjan Mishra, Interesting Engineering, 2 Sep. 2026 The illusion of molten steel was basically water and mineral oil mixed with a little powdered sugar; creative lighting and heaters placed below the cameras—plus a few CGI sparks in the background—did the rest. — ArsTechnica, 28 Aug. 2026 See All Example Sentences for molten

Word History

Etymology

Middle English, from past participle of melten to melt

First Known Use

14th century, in the meaning defined at sense 3

Time Traveler
The first known use of molten was in the 14th century

Browse Nearby Words

molt
molten
Molteno disease
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Cite this Entry

“Molten.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/molten. Accessed 7 Sep. 2026.

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Kids Definition

molten

adjective
mol·​ten ˈmōlt-ᵊn How to pronounce molten (audio)
: melted especially by very great heat

More from Merriam-Webster on molten

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