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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Another significant difference is in Ripley’s sacrificial dive into the molten metal in the finale. Jeff Spry, Space.com, 27 Apr. 2026 The molten center of 'The Real Housewives' multiverse Support Public Media. Brittany Luse, NPR, 24 Apr. 2026 The sample is a single spherical meteorite weighing 44 grams, with a dark molten outer shell. Chris Young, Interesting Engineering, 23 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 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 1 May. 2026.

Kids Definition

molten

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

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