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butterfat
butterfingers
butterfish
butterfly
butterfly ballot
butterfly bush
butterfly chair
butterfly diagram
butterfly effect
butterfly fish
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butterfly effect

but·ter·fly ef·fect


noun 
Definition:
 
large output from small input: the supposed influence exerted on a dynamic system by a small change in initial conditions.
See also  chaos theory


[After a 1979 scientific paper "Does the flap of a butterfly's wings in Brazil set off a tornado in Texas?" by Edward N. Lorenz]
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