rotations
|ro-ta-tions|
🇺🇸
/roʊˈteɪʃənz/
🇬🇧
/rəʊˈteɪʃ(ə)nz/
(rotation)
turning around
Etymology
'rotation' originates from Latin, specifically the word 'rotatio', where 'rota' meant 'wheel'. 『rotation』はラテン語の『rotatio』に由来し、そこでは『rota』が「車・輪」を意味した。
'rotation' changed from Middle English word 'rotacioun' (from Old French 'rotacion') and eventually became the modern English word 'rotation'. 『rotation』は中英語の語『rotacioun』(古フランス語の『rotacion』から)を経て現代英語の『rotation』になった。
Initially, it meant 'a turning or act of revolving,' but over time it evolved into its current meaning of 'an act of turning; a cycle or sequence; scheduled alternation.' 当初は「回転する行為」を指していたが、時とともに「回転・周期・順番に交替すること(ローテーション)」という現在の意味に広がった。
Meanings by Part of Speech
Noun 1
plural of 'rotation': acts or instances of turning around an axis or center; revolutions or spins.
The engine's rotations were measured to determine its RPM range.
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Noun 2
plural of 'rotation': cycles or repeated sequences, especially of positions, duties, or tasks (e.g., work rotations, clinical rotations).
Medical students complete several hospital rotations during their training.
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Noun 3
plural of 'rotation': agricultural practice patterns in which different crops are grown in succession on the same land (crop rotations).
Farmers use crop rotations to preserve soil fertility and reduce pests.
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Noun 4
plural of 'rotation': the order or pattern of recurring events or positions (e.g., team rotations in sports).
The coach planned several rotations to keep players fresh throughout the match.
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Last updated: 2025/12/19 13:47
