What term is used to identify the lowest point of a wave?

The term used to identify the lowest point of a wave is "trough." In wave terminology, the trough is the point where the wave reaches its minimum displacement from the equilibrium position, often represented as the lowest point in a sinusoidal wave pattern. This is significant in understanding wave behavior, as it provides insight into the wave's amplitude, frequency, and other properties. The concept of troughs is crucial in various scientific fields, including physics and engineering, where wave phenomena are studied, such as in sound waves and water waves.