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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Its light is rather that of a glowing molten metal than that of a burning furnace. Robert Lea, Space.com, 3 July 2026 Workers feed iron ore, coal and limestone into the furnaces’ top and use long sticks to punch open holes for purified molten iron to flow out from the bottom. John Lippert, Chicago Tribune, 28 June 2026 An iconic food in Minnesota, the Juicy Lucy is a three-napkin burger famous is for its molten cheese center. Jasmine Thompson, Midwest Living, 28 June 2026 The region’s glassmakers are known for their technical precision, decorative skill and ability to turn molten glass into objects of remarkable delicacy. Lea Lane, Forbes.com, 25 June 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 6 Jul. 2026.

Kids Definition

molten

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

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