左ひだり回まわり

noun, noun which may take the genitive case particle 'no'

counterclockwise rotation; anti-clockwise rotation; CCW

Describes rotation or movement in the opposite direction of a clock's hands. Often used in technical or directional contexts.

• このネジは左ひだり回まわりに回まわすと緩ゆるみます。

  This screw loosens when turned counterclockwise.

• 左ひだり回まわりの渦うずが発はっ生せいした。

  A counterclockwise vortex formed.