1. devices that remove particles from gases or liquids by causing them to settle out
Usage: technical; industrial
2. people or things that cause something to happen suddenly or prematurely

Examples

• The factory installed new electrostatic precipitators to reduce air pollution.
• Dust precipitators help clean the exhaust gases from power plants.
• The protesters became precipitators of widespread social change.
• Economic uncertainties were the main precipitators of the market crash.
• Industrial precipitators remove harmful particles before gases are released.
• The scandal’s precipitators faced serious consequences for their actions.