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 inscription would have sent enemies quite an impression as it was burned into the stone with molten lead, as if daring the attackers to continue their useless advance, Live Science continues. —Maria Mocerino, Interesting Engineering, 21 Mar. 2026

The molten fireballs and belching smoke over the Middle East early Thursday signaled a dramatic escalation in the Iran war — and its threat to the global economy. —Alexander Smith, NBC news, 19 Mar. 2026

The Skims founder debuted a bold new haircut in a molten gold gown that sparkled from every angle. —Lara Walsh, InStyle, 16 Mar. 2026

Nighttime is ideal for viewing the molten lava from the Halemaʻumaʻu crater, and the best viewing spots of the glowing crater include the Kilauea Overlook, Waldron Ledge and the Devastation Trail parking area. —Ben Davidson, Mercury News, 16 Mar. 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