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rotations

noun
Sayroh-TAY-shuhnzUS/ɹoʊˈteɪʃənz/UK/ɹəʊˈteɪʃənz/

1 meaning of rotations

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  1. 1
    noun
    Plural of rotation.

    The engineers counted the propeller's rotations to estimate engine speed.

    Nurses on the ward swap their shift rotations every two weeks.

    Note

    A plural that only some meanings of rotation can take. The steady act of turning is uncountable, so the plural begins once turns are counted as full cycles. It also covers duty rosters (staff rotations), shifts of investment between market sectors, geometric operations that fix a point, and a baseball club's starting pitchers. Comparing rotations across a league therefore means comparing several teams' pitching staffs.

rotations is a form of rotation

rotation, noun: The act or motion of spinning or turning about a center or an axis, as a wheel or planet does. Full entry

Forms
rotationrotations plural
Spelling
rotation → rotations: add -s
Sound
The ending sounds like /z/.

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