noun
Mathematical term for the nth root of the product of n numbers. Often contrasted with 相加平均 (arithmetic mean).
See also: 幾何平均
2と8の相乗平均は4です。
The geometric mean of 2 and 8 is 4.
相乗平均は、成長率の平均を計算するときによく使われます。
The geometric mean is often used when calculating average growth rates.