Definition of butterfly effect noun from the Oxford Advanced Learner's Dictionary


butterfly effect

BrE BrE//ˈbʌtəflaɪ ɪfekt//
; NAmE NAmE//ˈbʌtərflaɪ ɪfekt//
jump to other results
the idea that a very small change in one part of a system can have large effects in other parts Word Origin1980s: from the notion in chaos theory that a butterfly fluttering in Rio de Janeiro could change the weather in Chicago.
See the Oxford Advanced American Dictionary entry: butterfly effect