Definitions

1. noun

A band or belt of rain, typically of limited extent, or a band of cloud associated with such rain.

“The rainband stretched across the eastern part of the state, causing widespread flooding.”

2. noun

A strip of cloud or a line of showers or thunderstorms that is associated with a tropical cyclone, such as a hurricane or typhoon.

“The rainband of the hurricane moved slowly inland, bringing heavy rain to the coastal towns.”