[1] : WordNet (r) 2.0

tear gas
     n : a gas that makes the eyes fill with tears but does not
         damage them; used in dispersing crowds syn: teargas, lacrimator,
          lachrymator
see also:
teargas lacrimator lachrymator 

Gas >> G Words
Gas, definition of term: Gas
gas_pag1.html

Gas Stove >> G Words
Gas Stove, definition of term: Gas Stove
gas+stove_pag1.html

Gas Turbine >> G Words
Gas Turbine, definition of term: Gas Turbine
gas+turbine_pag1.html

Gas Station >> G Words
Gas Station, definition of term: Gas Station
gas+station_pag1.html

Gas Jet >> G Words
Gas Jet, definition of term: Gas Jet
gas+jet_pag1.html

Gas Chamber >> G Words
Gas Chamber, definition of term: Gas Chamber
gas+chamber_pag1.html

Coal Gas >> C Words
Coal Gas, definition of term: Coal Gas
coal+gas_pag1.html