核融合

• 読み: かくゆうごう
• ローマ字: kakuyugo
• 漢字の分解: 核 (kaku) — nucleus, core; 融 (yu) — to melt, to dissolve; 合 (go) — to join, to combine
• 発音: /ka.kɯ.jɯː.ɡoː/

意味

Nuclear fusion; the merging of light atomic nuclei to form heavier ones, releasing enormous amounts of energy. The process powering stars.

A compound of 核 (nucleus) and 融合 (fusion, merging). Nuclear fusion is the reaction that powers the sun and other stars, and is the basis of hydrogen bombs (水素爆弾). As a potential clean energy source, 核融合炉 (fusion reactors) are a major focus of international research, including ITER (国際熱核融合実験炉). In Japanese scientific and policy discourse, 核融合発電 (fusion power generation) is discussed as a long-term energy solution, contrasted with the current reliance on 核分裂 (fission) reactors.

例文

1. 太陽は核融合によって水素をヘリウムに変換し、莫大なエネルギーを放出している。
2. 核融合炉の実用化が実現すれば、人類のエネルギー問題を根本的に解決できる可能性がある。
3. 核融合は核分裂と異なり、長期的な放射性廃棄物をほとんど生じない点が利点だ。

使い方ガイド

場面: nuclear physics, energy policy, astrophysics, engineering

トーン: technical, neutral

起源と歴史

Modern scientific compound: 核 (kaku) — nucleus + 融合 (yugo) — fusion, merging. 融合 combines 融 (to melt, to dissolve) and 合 (to join, to combine). Coined to translate 'nuclear fusion' in mid-20th century Japanese physics vocabulary.

文化的背景

時代: Modern

世代: Adult

社会的背景: Educated