Dynamic range describes

"Dynamic range (often referred to as Wide Dynamic Range or WDR) is the difference between the lightest and darkest parts of a scene. A camera with high dynamic range can show details in both the highlights and shadows simultaneously."

— Axis Communications Academy, Network Video Fundamentals, 2022

"Wide Dynamic Range (WDR) improves image quality in scenes with very bright and very dark areas by balancing light and dark areas."

— Axis Communications, WDR Technology Overview