1. relating to or characterized by rain
Usage: formal; technical
2. caused by rain
Usage: geology; technical

1. a period of increased rainfall
Usage: geology; climatology

Examples

• The pluvial climate supported lush vegetation.
• Pluvial erosion carved deep channels in the hillside.
• Scientists studied the pluvial periods of the Ice Age.
• The region experienced a pluvial phase lasting thousands of years.
• Pluvial lakes formed during times of heavy rainfall.
• The pluvial conditions created ideal growing environments.