tear gas tear·gas uncommon noun 1. a gas that makes the eyes fill with tears but does not damage them; used in dispersing crowds Synonymstear gasteargaslacrimatorlachrymator Related words Broader terms gaschemical weapon Narrower terms chlorobenzylidenemalononitrilechloroacetophenonenitrochloromethane WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
