1. the water immediately downstream from a dam or other water control structure
Usage: technical; often used in fishing and environmental contexts

Examples

• The tailwaters below the dam are known for excellent trout fishing.
• Cold water released from the reservoir creates unique conditions in the tailwaters.
• Anglers gathered in the tailwaters hoping to catch rainbow trout.
• The temperature of the tailwaters remains constant year-round.
• Environmental scientists studied the ecosystem in the dam’s tailwaters.
• The tailwaters provide habitat for species that prefer cooler water temperatures.