era

Noun
  1. A period marked by distinctive character or reckoned from a fixed point or event (synset 115273375)
    is a type of: period, period of time, time period - an amount of time
    subtypes:
    specific instances:
    • caliphate - the era of Islam's ascendancy from the death of Mohammed until the 13th century; some Moslems still maintain that the Moslem world must always have a calif as head of the community
    • christian era, common era - the time period beginning with the supposed year of Christ's birth
    same as: epoch
  2. A major division of geological time;
    An era is usually divided into two or more periods (synset 115272831)
    is a type of: geologic time, geological time - the time of the physical formation and development of the earth (especially prior to human history)
    specific instances:
    has: geological period, period - a unit of geological time during which a system of rocks formed
    is a part of: aeon, eon - the longest division of geological time
    same as: geological era
  3. (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)
    referred to in: ball, baseball, baseball game - a ball game played with a bat and ball between two teams of nine players; teams take turns at bat trying to score runs
    is a type of: criterion, measure, standard, touchstone - a basis for comparison; a reference point against which other things can be evaluated
    same as: earned run average

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