摩擦

• 読み: まさつ
• ローマ字: masatsu
• 漢字の分解: 摩 (ma) — rub, grind; 擦 (satsu) — scrape, abrade, rub
• 発音: /ma.sa.tsɯ/

意味

Friction; rubbing; resistance between surfaces in contact. Also used figuratively for conflict, tension, or discord between people or groups.

In physics, 摩擦力 (frictional force) opposes relative motion between surfaces and is essential for traction, braking, and mechanical systems. Static friction (静止摩擦) prevents movement; kinetic friction (動摩擦) acts during motion. The figurative use — interpersonal or organisational friction — is equally common in business and social contexts, making this term versatile across scientific and everyday registers.

例文

1. 車輪と路面の間の摩擦がなければ、自動車は前進することも停止することもできない。
2. 摩擦係数が低い素材を使用することで、機械の効率が大幅に向上した。
3. 両者の意見の違いが摩擦を生み、プロジェクトの進行が遅れた。

使い方ガイド

場面: physics, engineering, business, social relations

トーン: neutral

起源と歴史

From Classical Chinese. 摩 means to rub or grind, and 擦 means to scrape or abrade. Both characters share the physical action of surfaces moving against each other.

文化的背景

時代: Classical–Modern

世代: All ages

社会的背景: Universal