1. of, relating to, or resembling a delta (the triangular or fan-shaped area where a river flows into a larger body of water)
Usage: geology, geography

Examples

• The deltaic region of the Nile River is one of the most fertile areas in Egypt.
• Deltaic deposits have built up over thousands of years as sediment accumulated at the river's mouth.
• The Mississippi's deltaic landscape is constantly shaped by water flow and erosion.
• Scientists study deltaic ecosystems to understand how rivers interact with coastal environments.
• Deltaic plains are often densely populated because of their rich soil and access to water.