The word 'teargas' is correct and usable in written English.
It refers to a chemical compound that causes irritation to the eyes, resulting in tears, used for crowd control and riot suppression. Example: The protesters were met with teargas as they marched towards the government building.
On Wednesday, the police used teargas to disperse angry locals.
The intersection had the location of much of the looting that occurred on Monday and where on Wedneday protesters were dispersed with teargas.
One teargas grenade thrown back by a protester landed on a pile of litter beside a library, igniting a small fire.
Police in riot gear drove people from the streets of Baltimore with teargas and smoke grenades on Tuesday night, after hundreds of protesters defied a 10pm curfew to continue demonstrating over the death of Freddie Gray.
Covering anti-government demonstrations has always been dangerous because of the state's frequent use of live bullets and teargas, and the police's tendency to briefly detain journalists at the scene.
Protests – accompanied by tyre-burning and petrol bombs, and often met with security forces firing teargas and rubber bullets – continue in Shia villages, with no sign that King Hamad is prepared to implement sufficient reforms to satisfy his critics.
They used teargas and water hoses to disperse the protest, and arrested a few people.
We barely raise an eyebrow at learning that when the authorities in Hong Kong stamped down on pro-democracy protests last autumn, the teargas they used was marked Made In Britain.
A Syrian refugee in the camp, Abu Nawras, said police fired teargas to disperse the protesters who were demanding improved conditions, better food and education for their children.
Police shot at rioters throwing bricks and bottles with teargas, rubber bullets and pepper balls.
Yet last weekend it erupted in a frenzy of violence, with masked demonstrators battling police, bonfires lit in the streets and local burghers left spluttering amid the teargas.
