butterfly effectn.

Brit.

/ˈbʌtəflʌɪ ᵻˌfɛkt/, U.S.

/ˈbədərˌflaɪ əˌfɛk(t)/

Origin: Formed within English, by compounding. Etymons: butterfly n., effect n.

Etymology: < butterfly n. + effect n.For a discussion of the origin of sense 2, compare E. N. Lorenz Essence of Chaos (1993) 14–15. Compare also quot. 1972 at sense 2.

1. Any of several phenomena associated with a graph thought to resemble a butterfly or one of its wings. Now rare.

ΚΠ

1958 Jrnl. Exper. Psychol. 56 374/2 If this happened, it might explain the leveling out of the ‘butterfly’ effect.

1972 Organizational Behaviour & Human Performance 8 121 An example of this phenomenon, which is referred to as the butterfly effect or butterfly curve, can be found in Haber's study.

2. In chaos theory: the phenomenon whereby a small change in some complex systems can have a large effect at a later time; (also) a specific instance of this phenomenon.The butterfly effect was first described in relation to meteorology and is often cited as an explanation for the lack of accuracy of detailed long-term predictions.

ΚΠ

1972 E. N. Lorenz in R. C. Hilborn Chaos & Nonlinear Dynamics (2000) i. 38 (title) Predictability: does the flap of a butterfly's wings in Brazil set off a tornado in Texas.]

1976 Nature 10 June 466/1 In a meteorological context, Lorenz has called this general phenomenon the butterfly effect.

1998 New Statesman 6 Mar. 30/3 I have been studying the butterfly effect as applied to the Third Way in politics and I believe this theory holds important political lessons.

2004 K. Mainzer Thinking in Complexity (ed. 4) vii. 313 Like many physicists, economists believed in the exact computability of their (linear) models and suppressed the possibility of a ‘butterfly effect’.

2015 Herald Bull. (Anderson, Indiana) 3 July (Life & Times section) d1/2 Sometimes the film broke its own time-traveling rules and completely ignores the butterfly effect.

This entry has been updated (OED Third Edition, September 2018; most recently modified version published online December 2021).

单词	butterfly effect
释义	butterfly effectn. Brit. /ˈbʌtəflʌɪ ᵻˌfɛkt/, U.S. /ˈbədərˌflaɪ əˌfɛk(t)/ Origin: Formed within English, by compounding. Etymons: butterfly n., effect n. Etymology: < butterfly n. + effect n.For a discussion of the origin of sense 2, compare E. N. Lorenz Essence of Chaos (1993) 14–15. Compare also quot. 1972 at sense 2. 1. Any of several phenomena associated with a graph thought to resemble a butterfly or one of its wings. Now rare. ΚΠ 1958 Jrnl. Exper. Psychol. 56 374/2 If this happened, it might explain the leveling out of the ‘butterfly’ effect. 1972 Organizational Behaviour & Human Performance 8 121 An example of this phenomenon, which is referred to as the butterfly effect or butterfly curve, can be found in Haber's study. 2. In chaos theory: the phenomenon whereby a small change in some complex systems can have a large effect at a later time; (also) a specific instance of this phenomenon.The butterfly effect was first described in relation to meteorology and is often cited as an explanation for the lack of accuracy of detailed long-term predictions. ΚΠ 1972 E. N. Lorenz in R. C. Hilborn Chaos & Nonlinear Dynamics (2000) i. 38 (title) Predictability: does the flap of a butterfly's wings in Brazil set off a tornado in Texas.] 1976 Nature 10 June 466/1 In a meteorological context, Lorenz has called this general phenomenon the butterfly effect. 1998 New Statesman 6 Mar. 30/3 I have been studying the butterfly effect as applied to the Third Way in politics and I believe this theory holds important political lessons. 2004 K. Mainzer Thinking in Complexity (ed. 4) vii. 313 Like many physicists, economists believed in the exact computability of their (linear) models and suppressed the possibility of a ‘butterfly effect’. 2015 Herald Bull. (Anderson, Indiana) 3 July (Life & Times section) d1/2 Sometimes the film broke its own time-traveling rules and completely ignores the butterfly effect. This entry has been updated (OED Third Edition, September 2018; most recently modified version published online December 2021). < n.1958
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