noun Date: circa 1856 a sequence (as 1, 1/2, 1/4) in which the ratio of a term to its predecessor is always the same
GEOMETRIC PROGRESSION
Meaning of GEOMETRIC PROGRESSION in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012