振幅
also: ふりはば
Meanings
1
amplitude (of vibration)
Physics term for the maximum displacement of a wave or oscillation.
The amplitude of this pendulum decreases over time.
2
volatility; fluctuation; swing
Only with reading ふりはば
Figurative use for the degree of change or instability in non-physical contexts, such as prices, emotions, or opinions. Reading is ふりはば.
See also: 振れ幅
Because the stock price swings are large, I'm being cautious about investing.
I'm amazed by the swings in his mood.
Usage patterns
- 〈物〉の振幅が大きい／小さいthe amplitude of ~ is large/small
The amplitude of this wave is very large.
- 振幅を測定するto measure the amplitude
We measured the amplitude of the vibration with a sensor.
- 〈物〉の振幅（ふりはば）が広がるthe swing/volatility of ~ widens
Lately, the swings in the stock price have been widening.
- 振幅（ふりはば）が縮小するthe fluctuation narrows
The fluctuation in the exchange rate has been narrowing.