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Noun: bullpen  'bûl,pen
Usage: N. Amer
  1. A place on a baseball field where relief pitchers can warm up during a game
  2. A large cell where prisoners (people awaiting trial, sentence, refugees or illegal immigrants) are confined together temporarily
    - detention cell, detention centre [Brit, Cdn], detention center [US]

Derived forms: bullpens

Type of: area, cell, jail cell, prison cell

Part of: ballpark [N. Amer], park

Encyclopedia: Bullpen