delta

Definition

A delta is a landform at the mouth of a river where it splits into smaller streams before entering a larger body of water; it can also refer to the fourth letter of the Greek alphabet or a measurable change.

中文 河口处的地形，河流在进入更大水体前分裂成较小的溪流；也指希腊字母第四个字母或可测量的变化。

Example

"The Nile River forms a vast delta before flowing into the Mediterranean Sea."