Butterfly effect - definition of Butterfly effect by the Free Online Dictionary, Thesaurus and Encyclopedia.

Butterfly effect - definition of Butterfly effect by the Free Online Dictionary, Thesaurus and Encyclopedia.: "Noun 1. butterfly effect - the phenomenon whereby a small change at one place in a complex system can have large effects elsewhere, e.g., a butterfly flapping its wings in Rio de Janeiro might change the weather in Chicago
consequence, effect, result, upshot, outcome, event, issue - a phenomenon that follows and is caused by some previous phenomenon; 'the magnetic effect was greater when the rod was lengthwise'; 'his decision had depressing consequences for business'; 'he acted very wise after the event'"