1. plural of catchment; areas of land from which water drains into a river, lake, or reservoir
Usage: commonly used in geography and environmental science; also called drainage basins or watersheds
2. plural of catchment; the act or process of catching or collecting something
Usage: less common usage; primarily British

Examples

• The catchments in this region supply water to three major cities.
• Heavy rainfall across the catchments increased water levels in the reservoir.
• Environmental scientists study how pollution affects different catchments.
• The catchments of the Amazon River span multiple countries.
• Protecting forest catchments is essential for maintaining clean water supplies.
• Urban development has altered the natural catchments in the valley.