[tɔːˈneɪdəʊ], (Noun)

Definitions:
- a mobile, destructive vortex of violently rotating winds having the appearance of a funnel-shaped cloud and advancing beneath a large storm system


Phrases:

Origin:
mid 16th century (denoting a violent thunderstorm of the tropical Atlantic Ocean): perhaps an alteration of Spanish tronada ‘thunderstorm’ (from tronar ‘to thunder’) by association with Spanish tornar ‘to turn’