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mesocyclone Syllabification: mes·o·cy·clone
Pronunciation: /ˌmezəˈsīklōn/ /ˌmesə-/ /ˌmēzə-/ /ˌmēsə-/

Entry from US English dictionary

Definition of mesocyclone in English:


A cyclonic air mass associated with a supercell; its presence is a condition for a tornado warning.
Example sentences
  • The frequency shift is then converted to wind velocity, yielding a small region of rapidly changing wind direction, a characteristic rotational wind shear signature of the mesocyclone indicating a tornadic circulation.
  • Various different temperatures and wind interactions at different altitudes can cause a rotating updraft called a mesocyclone.
  • One of the major differences of super cells compared to that of single-cell and multi-cells storms is that, the super cell contains a viscous rotating updraft, this rotational updraft is known as a mesocyclone.


Late 20th century.

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