(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.
( crests plural ) 1 n-count The crestof a hill or a wave is the top of it., If you say that you are on the crest of a wave , you mean that you are feeling very happy and confident because things are going well for you. â¦ on the crest of a wave phrase v-link PHR, PHR after v.