molten

adjective

mol·​ten ˈmōl-tᵊn How to pronounce molten (audio)
Synonyms of moltennext
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
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Hermes-1 is not built to produce electricity, which is a crucial step in demonstrating the incorporation of components such as the tri-structural isotropic (TRISO) coated fuel particle and flibe molten fluoride salt coolant. Ameya Paleja, Interesting Engineering, 21 Apr. 2026 That person belongs to a different time, to a different town and to people who cannot be expected to remain the same, any more than the slopes of a volcano can be expected to still be molten rock an eon after the last eruption. Jessica Kiang, Variety, 17 Apr. 2026 Anytime of day, don’t miss the hazelnut dark chocolate tart or molten chocolate souffle dessert. Bud Kennedy, Fort Worth Star-Telegram, 15 Apr. 2026 Manufacturers pour molten silver into molds — a simpler process that keeps production costs and premiums lower. Sharon Wu, USA Today, 15 Apr. 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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Cite this Entry

“Molten.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.grautoblog.com/dictionary/molten. Accessed 25 Apr. 2026.

Kids Definition

molten

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

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