1. a chemical weapon that causes severe eye and respiratory irritation, used by police for crowd control

1. to attack or disperse with tear gas

Examples

• Police used teargas to disperse the violent protesters.
• The teargas made everyone’s eyes water and burn.
• Riot control units carry teargas canisters as standard equipment.
• The crowd scattered when officers began to teargas the area.
• She covered her face to protect herself from the teargas.
• The effects of teargas typically last for several minutes.
• Authorities decided to teargas the building to force out the suspects.