1. building up the level of land by depositing sediment or other material
Usage: geology; present participle of aggrade

Examples

• The river is aggrading its bed with sand and gravel.
• Coastal areas are aggrading due to sediment deposits from upstream.
• The delta has been aggrading for thousands of years.
• Engineers studied how the stream was aggrading after the dam construction.
• The floodplain is slowly aggrading with each seasonal flood.
• Scientists observed the canyon aggrading with volcanic ash.