Definitions for "Graded stream"
A stream that has attained a state of equilibrium, or balance, between erosion and deposition, so that the velocity of the water is just great enough to transport the sediment load supplied from the drainage basin, and neither erosion nor deposition occurs.
A stream whose smooth longitudinal profile is unbroken by resistant ledges, lakes, or waterfalls and that exactly maintains the slope, velocity, and discharge required to carry its sediment load in equilibrium without erosion or sedimentation.
A stream maintaining an equilibrium between the processes of erosion and deposition, and therefore between aggradation and degradation.