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Synonyms
ro·ta·tion (rō-tā́shən)

noun 

    1. The act or process of turning around a center or an axis: the axial rotation of the earth.
    2. A single complete cycle of such motion.
  1. Mathematics A transformation of a coordinate system in which the new axes have a specified angular displacement from their original position while the origin remains fixed.
  2. Regular and uniform variation in a sequence or series: a rotation of personnel; crop rotation.
  3. Games An order of shooting balls in billiards in which the ball with the lowest number on the table is always pocketed first.

derivatives

ro·tátion·al
adjective