mesocyclone

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noun me·so·cy·clone \ˌme-zə-ˈsī-ˌklōn, ˌmē-, -sə-ˈsī-\

Definition of mesocyclone

  1. :  a rapidly rotating air mass within a thunderstorm that often gives rise to a tornado

1963

First Known Use of mesocyclone

1963


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