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

The MsNB is designed as a compact molten salt microreactor using natural circulation instead of relying on pumps to move its coolant. — Neetika Walter, Interesting Engineering, 18 Sep. 2026

There are molten metallics in approachable shades (gold, silver, bronze) and artsier ones too (rainbow chrome, lilac, fuchsia). — Elizabeth Siegel, Allure, 17 Sep. 2026

Nearly 30 years later, these twentysomethings (don’t do the math) are almost all grown up, and the molten mantle of magic is ready to be passed on. — Ryan Coleman, Entertainment Weekly, 11 Sep. 2026

Think of abstract chrome shapes in warm fall colors, chrome studs on top of black-and-white designs, and crystals embedded in molten layers of silver for an earthy, bohemian edge. — Ariel Wodarcyk, InStyle, 11 Sep. 2026

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