溶岩

• 読み: ようがん
• ローマ字: yougan
• 漢字の分解: 溶 (you) — melt, dissolve; 岩 (gan) — rock, cliff
• 発音: /jo.ɯ.gaɴ/

意味

Lava. Molten rock that flows from a volcano during an eruption.

A noun referring to both molten rock (magma that has reached the surface) and solidified volcanic rock. Commonly encountered in geography, science, and travel contexts — especially when discussing Japanese volcanoes like 富士山 or 桜島. Also appears in compound words like 溶岩流 (lava flow) and 溶岩台地 (lava plateau).

例文

1. 火山から溶岩が流れ出した。
2. 溶岩が冷えて固まると独特な地形になる。
3. この島は溶岩でできた岩場が多い。

使い方ガイド

場面: geography, science, volcanoes, travel

トーン: descriptive

起源と歴史

From Sino-Japanese 溶 (you, to melt/dissolve) + 岩 (gan, rock). Literally 'melted rock' — a direct and descriptive name for lava.

文化的背景

時代: Modern

世代: All ages

社会的背景: Universal