(baseball) a measure of a pitcher's effectiveness; calculated as the average number of earned runs allowed by the pitcher for every nine innings pitch more..(baseball) a measure of a pitcher's effectiveness; calculated as the average number of earned runs allowed by the pitcher for every nine innings pitched(noun.communication)
a measure of a student's academic achievement at a college or university; calculated by dividing the total number of grade points received by the tota more..a measure of a student's academic achievement at a college or university; calculated by dividing the total number of grade points received by the total number attempted(noun.communication)