aerosol gas that causes extreme irritation of the eyes, leading to tears and sometimes vomiting. Also called CS gas.

Gases that irritate the eyes, Throat, or Skin. Severe lacrimation develops upon irritation of the eyes.

A Riot control agent which causes temporary irritation of the eyes and the mucosal surface of the respiratory tract. It is a more potent irritant than omega-Chloroacetophenone, but less incapacitating [..]

Tear gas, also known as lachrymatory agent or lachrymator, is a non-lethal chemical weapon that stimulates the eyes to cause tears, pain and even blindness. Tear gas is commonly used as riot control and chemical warfare agents, though military use of tear gas is prohibited by various international conventions. 

A substance used in law enforcement to incapacitate individuals by inducing severe tearing, burning, nausea and respiratory distress without causing permanent injury.

Any lachrymatory non-lethal chemical compound that causes the eyes to sting and water and/or irritates the respiratory system, mostly used for controlling crowds during riots or as self-defense. * [..]