The definition of a derecho is a group of strong and fast storms with strong winds that run along a straight line, causing damage similar to a tornado.
An example of a derecho is the storm like a land hurricane that took out power lines in Ohio.
an extensive, fast-moving band of severe thunderstorms characterized by straight-line winds
Origin of derechoSp, adjective , straight, direct
A windstorm that is accompanied by a quickly moving, usually bow-shaped band of showers or thunderstorms.
Origin of derechoSpanish derecho straight ( from Old Spanish) ( from Latin dīrēctus ) ( past participle of dīrigere to lay straight ; see reg- in Indo-European roots.) applied in English to windstorms on the model of English tornado taken as if derived directly from Spanish tornado turned