1. of, relating to, or shaped like a delta (the triangular deposit of sediment at a river mouth)
Usage: geology, geography

Examples

• The deltic region of the Nile River is one of the most fertile areas in Egypt.
• Deltic deposits form when rivers slow and drop their sediment into the sea.
• Scientists study deltic environments to understand coastal erosion and land formation.
• The Mississippi River's deltic plain supports diverse ecosystems.
• Deltic soils are typically rich in nutrients from upstream sediment.