molten

adjective

mol·​ten ˈmōl-tᵊn 

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

Welders used welding guns to shoot molten steel wires across a seam, linking two large metal beams together, said Tito Calderon, a welder and fabricator. —Alex Haddon, The Indianapolis Star, 10 June 2024

The rare earth oxide then undergoes a molten salt electrolysis process that converts it into a solid metal form. —IEEE Spectrum, 31 May 2024

To that end, the visual effects team went out early and filmed all sorts of experimental footage — artful ways of showing particles, waves, chain reactions, bursting stars, droplets of molten metal exploding. —Bilge Ebiri, Vulture, 10 Mar. 2024

Boston Metal’s patented molten oxide electrolysis (MOE) solution takes the coal out of steelmaking, replacing the most carbon-intensive manufacturing steps (e.g., coking) with a process that produces molten ore with renewable electricity and generates no CO2 emissions. —Joe Mullich, TIME, 30 May 2024

Word History

Etymology

Middle English, from past participle of melten to melt

First Known Use

14th century, in the meaning defined at sense 3

Kids Definition

molten

adjective

mol·​ten ˈmōlt-ᵊn 

: melted especially by very great heat