Definitions of rainstorm

n a storm with rain

equinoctial storm, line storm
a violent rainstorm near the time of an equinox
a short rainstorm accompanied by thunder and lightning
Type of:
storm, violent storm
a violent weather condition with winds 64-72 knots (11 on the Beaufort scale) and precipitation and thunder and lightning
rain, rainfall
water falling in drops from vapor condensed in the atmosphere

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