(Definition of âhowdyâ from the Cambridge Academic Content Dictionary Â© Cambridge University Press)
A wave is an up and down movement of water. When we talk about waves, we use special words to name their parts. The highest point of a wave is called the crest. The lowest point is called the trough. Wave height is the vertical distance between the crest and trough. Wavelength is the horizontal distance between waves in a series. Wavelength can be measured between two wave crests. It can be measured between two wave troughs.
Wave, ripple, breaker, surf refer to a ridge or swell on the surface of water. Wave is the general word: waves in a high wind. A ripple is the smallest kind of wave, such as is caused by a stone thrown into a pool: ripples in a brook. A breaker is a wave breaking, or about to break, upon the shore or upon rocks: the roar of breakers.