Baseball. a measure of the batting ability of a player, obtained by dividing the number of base hits by the number of official times at bat and carrying out the result to three decimal places. A player with 100 base hits in 300 times at bat has a batting average of 0.333.
Informal. a degree of achievement or accomplishment in any activity.
Origin of batting average
An Americanism dating back to 1865–70
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019