English

Definition of pendulum noun from the Oxford Advanced Learner's Dictionary

 

pendulum

 noun
noun
BrE BrE//ˈpendjələm//
 
; NAmE NAmE//ˈpendʒələm//
 
 
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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 Word Origin mid 17th cent.: from Latin, neuter (used as a noun) of pendulus ‘hanging down’.
See the Oxford Advanced American Dictionary entry: pendulum