delta
🇺🇸
/ˈdeltə/
🇬🇧
/ˈdeltə/
the fourth letter of the Greek alphabet (Δ, δ)
The symbol for delta is Δ.
a triangular area of land where a river divides into smaller rivers before going into the sea
Farmers rely on the fertile soil of the delta for growing crops.
a form of the COVID-19 virus identified in 2020 and named Delta
The Delta variant caused a new wave of infections.