Definition of contra-rotating in English:

contra-rotating

Line breaks: contra-rotating
Pronunciation: /kɒntrərəʊˈteɪtɪŋ
 
/

adjective

  • Rotating in the opposite direction or in opposite directions, especially about the same shaft.
    More example sentences
    • The valves are actuated via drag arms from twin, contra-rotating camshafts.
    • However, most designs still had two or more contra-rotating blades to solve the torque problem and this caused highly complex and unsound craft.
    • Another benefit was that the contra-rotating propellers eliminated torque.

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Word of the day coloratura
Pronunciation: ˌkələrəˈto͝orə
noun
elaborate ornamentation of a vocal melody