'Era' definitions:

Definition of 'era'

(from WordNet)
noun
A period marked by distinctive character or reckoned from a fixed point or event [syn: era, epoch]
noun
A major division of geological time; an era is usually divided into two or more periods [syn: era, geological era]
noun
(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 [syn: earned run average, ERA]

Definition of 'Era'

From: GCIDE
  • Era \E"ra\, n.; pl. Eras. [LL. aera an era, in earlier usage, the items of an account, counters, pl. of aes, aeris, brass, money. See Ore.]
  • 1. A fixed point of time, usually an epoch, from which a series of years is reckoned. [1913 Webster]
  • The foundation of Solomon's temple is conjectured by Ideler to have been an era. --R. S. Poole. [1913 Webster]
  • 2. A period of time reckoned from some particular date or epoch; a succession of years dating from some important event; as, the era of Alexander; the era of Christ, or the Christian era (see under Christian). [1913 Webster]
  • The first century of our era. --M. Arnold. [1913 Webster]
  • 3. A period of time in which a new order of things prevails; a signal stage of history; an epoch. [1913 Webster]
  • Painting may truly be said to have opened the new era of culture. --J. A. Symonds.
  • Syn: Epoch; time; date; period; age; dispensation. See Epoch. [1913 Webster]

Synonyms of 'era'

From: Moby Thesaurus