|1.||[ noun ] (chemistry,arms) a gas that makes the eyes fill with tears but does not damage them; used in dispersing crowds|
|Synonyms:||lacrimator lachrymator tear_gas|
|Related terms:||gas chemical_weapon chlorobenzylidenemalononitrile chloroacetophenone nitrochloromethane|
|2.||[ verb ] (military) attack with teargas; subject to teargas fumes|
"The students were teargassed during the riot"