(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.
2. the highest point or level: riding the crest of popularity. 3. a ridge or ridgelike formation. 4. the foamy top of a wave. 5. the point of highest flood, as of a river. 6. a tuft or other natural growth on the top of the head of an animal, as the comb of a rooster. 7. the ridge of the neck of a horse, dog, etc. 8. the mane growing from this ridge. 9. an ornament or emblem on a knight's helmet. 10. a. a heraldic device above the escutcheon on a coat of arms.