tear gas

2 ENTRIES FOUND:

tear gas

noun

: a gas that makes people unable to see by causing their eyes to be filled with tears and that is used especially by the police or military to separate large groups of people

Full Definition of TEAR GAS

:  a solid, liquid, or gaseous substance that on dispersion in the atmosphere irritates mucous membranes resulting especially in blinding of the eyes with tears and is used chiefly in dispelling mobs

First Known Use of TEAR GAS

1917

tear gas

noun    (Medical Dictionary)

Medical Definition of TEAR GAS

: a solid, liquid, or gaseous substance that on dispersion in the atmosphere irritates mucous membranes resulting especially in blinding of the eyes with tears

tear gas

noun    (Concise Encyclopedia)

Any of a group of substances, most often synthetic organic halogen compounds, that irritate the mucous membranes of the eyes, causing a stinging sensation and tears. They may also irritate the upper respiratory tract, causing coughing, choking, and general debility. Tear gas was first used in warfare in World War I, but since its effects are short-lasting and rarely disabling, it came into use by law-enforcement agencies as a means of dispersing mobs, disabling rioters, and flushing out armed suspects without the use of deadly force.

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