風化

• 読み: ふうか
• ローマ字: fuuka
• 漢字の分解: 風 (kaze/fū) — wind; 化 (ka) — change, transform
• 発音: /ɸɯː.ka/

意味

Weathering; erosion; the gradual wearing down of rock or material by wind, water, and atmospheric forces. Figuratively, the fading of memories, events, or social awareness over time.

A noun and する-verb with dual registers. In geology, 風化 describes the physical and chemical breakdown of rock by natural forces. In social and journalistic discourse, it is used to lament the erosion of collective memory — especially concerning wars, disasters, or tragedies — as time passes and survivors dwindle. This figurative use is particularly prevalent in discussions about preserving historical consciousness.

例文

1. 長年の風雨にさらされた石碑は風化が進み、文字が読めなくなっていた。
2. 戦争の記憶が風化しないよう、語り部たちは次世代への伝承を続けている。
3. 砂岩は花崗岩に比べて風化しやすく、侵食速度が速い。

使い方ガイド

場面: geology, social commentary, figurative language

トーン: reflective

起源と歴史

Sino-Japanese compound. 風 (kaze/fū) means wind, and 化 (ka) means to transform or change. Originally referring to physical erosion by wind and weather, the word has extended metaphorically to describe the fading of anything over time.

文化的背景

時代: Classical–Modern

世代: Adults

社会的背景: Universal