era

Noun
  • A period marked by distinctive character or reckoned from a fixed point or event (synset 115273375)
  • A major division of geological time
    An era is usually divided into two or more periods (synset 115272831)
  • (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 (synset 107275968)

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