1. plural of diluvion; great floods or deluges, especially those caused by heavy rainfall or overflow of water bodies
Usage: archaic or literary; often used in historical or geological contexts
2. in geology, deposits or sediments left behind by ancient floods or the biblical Flood
Usage: archaic; historical geological term

Examples

• The diluvions of the past century reshaped the river valley.
• Ancient diluvions left thick layers of sediment across the plain.
• Historical records describe the diluvions that devastated the coastal regions.
• Geologists studied the diluvions to understand prehistoric water patterns.
• The diluvions caused by the monsoon rains were unprecedented in scale.