Noun Definition
era
1.Definition: (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
Category: General2.Definition: a major division of geological time; an era is usually divided into two or more periods
Category: General3.Definition: a period marked by distinctive character or reckoned from a fixed point or event
Related Noun(s):epoch
Category: General