Definition of geometric progression noun from the Oxford Advanced Learner's Dictionary

 

geometric progression

 noun
noun
BrE
 
; NAmE
 
(also geometric series)
 
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a series of numbers in which each is multiplied or divided by a fixed number to produce the next, for example 1, 3, 9, 27, 81 compare arithmetic progression
See the Oxford Advanced American Dictionary entry: geometric progression