1. a room in a newspaper office or printing plant where printing presses are operated
2. a room where journalists gather to receive news briefings or conduct interviews

Examples

• The newspaper’s pressroom was filled with the sound of printing machines.
• Reporters gathered in the White House pressroom for the daily briefing.
• The old pressroom had been converted into office space.
• Security was tight in the pressroom during the press conference.
• The pressroom manager supervised the printing of the morning edition.
• Journalists waited in the pressroom for the governor’s announcement.