Definition of "rotation" []

• The act or process of turning around a center or an axis: the axial rotation of the earth. (noun)
• A single complete cycle of such motion. (noun)
• 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. (noun)
• Regular and uniform variation in a sequence or series: a rotation of personnel; crop rotation. (noun)
• Games An order of shooting balls in billiards in which the ball with the lowest number on the table is always pocketed first. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "My longest item in rotation is probably roast chicken with lemon and garlic."
• "By the term rotation in office, then, we mean an obligation on the holder of that office to go out at a certain period."
• "St. Louis: With postseason heroes RHPs Jeff Suppan and Jeff Weaver free agents, the rotation is the Cardinals 'top priority."