molten

IPA/ˈməʊltən/
KK[mˈoltən]IPA/ˈməʊltən/

molten — adjective

  • moltenpositive
  • more moltencomparative
  • most moltensuperlative

1. describes metal, rock, or other hard substances that have been heated until they

1.形容詞B2
釋義

describes metal, rock, or other hard substances that have been heated until they change from a solid into a liquid form

例句

The volcano erupted, sending streams of molten lava down the mountainside.

attributive: molten lava after a volcanic eruption

Workers at the steel plant carefully pour the molten iron into large moulds.

attributive: molten iron in industrial casting

同義詞
  • melted

    the general-purpose term; use for anything that changes from solid to liquid (ice, butter, chocolate). Molten is specific to very high-temperature melting.

  • liquefied

    more technical register; can apply to any substance turned liquid by heat, pressure, or a chemical process, not necessarily extreme heat.

  • fused

    suggests two or more materials joined together by heat; focuses on the result (merging) rather than the physical state.

反義詞
  • solid

    the opposite physical state; does not imply a temperature change.

  • frozen

    solidified by extreme cold rather than the absence of heat.

文法句型

molten + noun

become / turn + molten

用法筆記

Only used for substances that melt at very high temperatures — typically metals, rocks, minerals, and glass. For everyday melting of ice, butter, chocolate, or wax, use melted instead.

常見錯誤

❌The ice cream became molten in the hot sun.
✅The ice cream melted in the hot sun.
💡molten is reserved for metal, rock, and glass that melt at extreme temperatures, not for food or ice.
❌She stirred the molten chocolate into the batter.
✅She stirred the melted chocolate into the batter.
💡molten sounds unnatural with food; use melted everyday substances.