| a measure of the effectiveness of a batter in making base hits, obtained by dividing the total bases reached by hitting by the number of official times at bat and carrying out the result to three decimal places. A batter making 275 total bases in 500 times at bat has a slugging average of .550. |
| slug·ging percentage (slŭg'ĭng) n. Baseball A player's total number of bases reached on hits divided by official times at bat, expressed as a three-digit decimal and used as a measure of batting power. Also called slugging average. |