A sawtooth wave is a type of non-sinusoidal waveform that rises gradually and then sharply drops, resembling the teeth of a saw. It is characterized by its linear rise and sudden fall, creating a distinctive shape. This waveform is commonly used in music synthesis and signal processing due to its rich harmonic content. In electronics, sawtooth waves are often generated by oscillators and can be found in various applications, including oscilloscope displays and synthesizers. The frequency and amplitude of a sawtooth wave can be adjusted, making it versatile for different uses in audio and signal modulation.