Deltas

/ˈdɛltəz/ noun

Definition

Plural of delta; multiple triangular regions where rivers meet and empty into larger bodies of water, or multiple instances of the Greek letter delta.

Etymology

From 'delta,' ultimately derived from the Phoenician letter 'daleth' (meaning 'door') that became the Greek letter Δ. The triangular landforms were named after this letter's shape.

Kelly Says

The world's major deltas—Nile, Ganges, Mekong, Mississippi, Amazon—sustain over a billion people and are sinking due to climate change and dam building, making them among Earth's most vulnerable yet essential regions.

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