Yaw rate refers to the rate at which a vehicle rotates around its vertical axis, measured in degrees per second. It indicates how quickly a vehicle is turning left or right. A higher yaw rate means a sharper turn, while a lower yaw rate indicates a gentler turn. Yaw rate is an important factor in vehicle dynamics and stability control systems. It helps systems like Electronic Stability Control (ESC) maintain traction and prevent skidding during sharp maneuvers. Monitoring yaw rate can enhance safety by providing real-time data to drivers and automated systems.