- an infinite series of the form, c + cx + cx2 + cx3 + …, where c and x are real numbers.
- geometric progression.
Origin of geometric series
First recorded in 1830–40
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- a geometric progression written as a sum, as in 1 + 2 + 4 + 8