molten

adjective

mol·ten ˈmōl-tᵊn

Synonyms of molten

: fused or liquefied by heat : melted

molten lava

: having warmth or brilliance : glowing

… the molten sunlight of warm skies …—T. B. Costain

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.

Each color change requires it to unload one filament, load another and purge the remaining molten plastic. — New Atlas, 17 Oct. 2026 The Molten Chloride Reactor Experiment (MCRE) aims to test a fast-spectrum molten chloride salt reactor under sustained fission conditions. — Aamir Khollam, Interesting Engineering, 16 Oct. 2026 It was painted using a technique in which pigments are mixed with molten wax, and restorers were able to recover the features of the brother on the right. — ABC News, 11 Oct. 2026 One camera notably sacrificed itself in order to bring us images of red-hot, semi-molten rock falling from the sky. — John Timmer, ArsTechnica, 9 Oct. 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

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Browse Nearby Words

molt

molten

Molteno disease

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Cite this Entry

Style

“Molten.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/molten. Accessed 20 Oct. 2026.

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Kids Definition

molten

adjective

mol·ten ˈmōlt-ᵊn

: melted especially by very great heat

molten

adjective

Examples of molten in a Sentence

Word History

Browse Nearby Words

Cite this Entry

Kids Definition

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