DERAILLEUR


Meaning of DERAILLEUR in English

/ dɪˈreɪljə(r); NAmE / noun

( technical ) a type of gear on a bicycle that works by lifting the chain from one gear wheel to another larger or smaller one

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WORD ORIGIN

1930s: from French , from dérailler derail.

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.