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
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.
While there have been molten salt reactor experiments before, the MCRE is unique in a few interesting ways. Christopher McFadden, Interesting Engineering, 26 Dec. 2025 Olivine is a mineral primarily found in igneous rocks (rocks created through the solidification and crystallization of molten rock) that are rich in magnesium and iron. Lydia Mansel, Travel + Leisure, 26 Dec. 2025 Created by Heather Errington, this pastel blue heart layered over a molten chocolate base is so cool. Jacqueline Kilikita, Refinery29, 22 Dec. 2025 The Swiss have been dipping bread in molten dairy for centuries, and the fondue entertaining craze of the 1960s and 1970s has, at least in the US, given the dish a bit of a retro reputation. Callie Sumlin, Bon Appetit Magazine, 18 Dec. 2025 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.merriam-webster.com/dictionary/molten. Accessed 31 Dec. 2025.

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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