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English definition of “chaos theory”

chaos theory

noun [U]    
a scientific theory about situations that obey particular laws but appear to have little or no order: A frequent metaphor for one aspect of chaos theory is called the Butterfly Effect - butterflies flapping their wings in the Amazon affect the weather in Chicago.Particular theories and concepts in physics
(Definition of chaos theory noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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