Meaning of PENDULUM in English

PENDULUM

/ ˈpendjələm; NAmE -dʒələm/ noun

a long straight part with a weight at the end that moves regularly from side to side to control the movement of a clock :

( figurative )

In education, the pendulum has swung back to traditional teaching methods.

the pendulum of public opinion

—picture at grandfather clock

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WORD ORIGIN

mid 17th cent.: from Latin , neuter (used as a noun) of pendulus hanging down.

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