1. (initialism) .  (baseball) “Earned Run Average” baseball statistic .
  2. (initialism) .  (US) Equal Rights Amendment.
  3. (initialism) .  electrically reconfigurable array.
  4. (initialism) .  (military) explosive reactive armor.
  5. Noun.  A time period of indeterminate length, generally more than one year.

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This entry was last updated on RefTopia from its source on 3/20/2012.