irritant

Researchers say their bodies are covered with “irritant hairs” that, if touched, can cause dermatitis and a rash.

Sometimes local police will scare bears out of residents’ homes with air horns or projectiles that release an irritant akin to pepper spray, but they are legally limited in what they can do.

The people involved hurled objects, sprayed irritants and tossed fireworks — attacks that continued for hours until officers from the Los Angeles Police Department and the California Highway Patrol quelled the violence.

At one point, he said, someone from the truck shot out an irritant toward him and another protester.

Officers used a chemical irritant to force him out of the motel room, according to the complaint.