揺らぎ

• 読み: ゆらぎ
• ローマ字: yuragi
• 漢字の分解: 揺 (yō/yu) — sway, rock, shake
• 発音: /jɯɾagi/

意味

Fluctuation; wavering; oscillation; gentle variation or instability.

The nominalised form of 揺らぐ (to waver, fluctuate). Used in both scientific contexts — statistical noise, quantum fluctuations, temperature variation — and literary or emotional ones: a wavering of conviction, vacillation of values. Carries a subtly poetic nuance, evoking something that is not quite stable but gently in motion rather than violently shaken.

例文

1. 川面の揺らぎが夕日を美しく映し出していた。
2. 彼の信念に揺らぎが生じたのは、その事件がきっかけだった。
3. 気温の揺らぎが植物の生育に影響を与えることがある。

使い方ガイド

場面: literary, science, philosophy, emotional description

トーン: neutral

起源と歴史

Nominalised form of 揺らぐ (to sway, waver), itself from 揺れる (to shake). The kanji 揺 carries the meaning of swaying or rocking motion. The noun form 揺らぎ gained prominence in physics and information theory as a translation of 'noise' or 'fluctuation'.

文化的背景

時代: Modern

世代: Adults

社会的背景: Educated