geometric mean

American

noun

Mathematics.

the mean of n positive numbers obtained by taking the n th root of the product of the numbers.

The geometric mean of 6 and 24 is 12.

geometric mean British

noun

the average value of a set of n integers, terms, or quantities, expressed as the n th root of their product Compare arithmetic mean

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

geometric mean Scientific

The positive n th root of the product of a set of n numbers. For example, the geometric mean of 2 × 3 × 6 × 8 is the 4th root of 288, or approximately 4.12.

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geometric mean

This three-day geometric mean is how the county measures moderate-but-persistent poop problems.

From Seattle Times ● Aug. 12, 2022

Using the decimal multiplier equivalents of 1.12, 0.92, and 1.02, allows us to compute a geometric mean of 1.0167.

From Textbooks ● Nov. 29, 2017

The geometric mean will provide us with the answer to the question, what is the average rate of return: 16 percent.

From Textbooks ● Nov. 29, 2017

The following are monthly geometric mean E. coli ratings for the control site and S-RAM site, measured in colonies per 100 milliliters of water.

From Washington Times ● Oct. 20, 2014

The great objection to the geometric mean is its cumbrousness.

From Readings in Money and Banking Selected and Adapted by Phillips, Chester Arthur

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023