tear gas


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Related to tear gas: pepper spray

gas

 [gas]
any elastic aeriform fluid in which the molecules are widely separated from each other and so have free paths.
alveolar gas the gas in the alveoli of the lungs, where gas exchange with the capillary blood takes place.
blood g's the partial pressures of oxygen and carbon dioxide in blood; see blood gas analysis.
laughing gas nitrous oxide.
gas pains pains caused by distention of the stomach or intestines by accumulation of air or other gases. The presence of gas is indicated by distention of the abdomen, belching, or discharge of gas through the rectum. Gas-forming foods include highly flavored vegetables such as onions, cabbage, and turnips; members of the bean family; and fruits such as melons and raw apples. Some seasonings and other chemical irritants also produce gas.
tear gas any of various irritant vapors dispensed by aerosol and causing pain and severe lacrimation in humans; some also cause irritation of exposed mucous membranes as well as vomiting. Common ones include chloroacetophenone (CN), o-chlorobenzylidenemalononitrile (see CS), and dibenz(b,f)-1,4-oxazepine (see cr); the most common of the three is CS (also known as mace).

tear gas

a gas (for example, acetone, benzene bromide, xylol) that causes irritation of the conjunctiva and profuse lacrimation.
See also: lacrimator.

tear gas

[tēr]
a gas that produces severe lacrimation by irritating the conjunctivae.

tear gas

(tēr gas)
A common but erroneous term for compounds (e.g., acetone, benzene bromide, and xylol) that irritate the conjunctiva and cause profuse lacrimation. These compounds are typically solids dispensed either as aerosols or in solution.
See also: lacrimator

gas

any elastic aeriform fluid in which the molecules are widely separated from each other and so have free paths.

alveolar gas
the gas in the alveoli of the lungs, where gaseous exchange with the capillary blood takes place. See also oxygen, carbon dioxide.
blood gas
gas bubble disease
a disease of fish in tanks in which the water is supersaturated with oxygen or nitrogen. Gas embolism develops in the gills. Air bubbles can be seen in the gills, eyes and under the skin and the fish show bizarre nervous behavior.
gas cap
a cap of gas above fluid or solid contents in a hollow viscus, e.g. in a static rumen. Seen radiologically in distended intestinal loops in paralytical ileus.
gas edema disease
gas exchange
gases move by simple diffusion in response to pressure differences; net diffusion occurs from areas of high pressure to areas of lower pressure irrespective of whether the gas is present as a gas or in solution or gases moving from gas to solution or vice versa. The rate of exchange of gases in body tissues, e.g. between alveolar space and erythrocyte, is influenced by many other factors, especially the diffusion distance and the solubility of the gas.
gas inhalation
irritant gases, e.g. manure gas, cause pulmonary edema.
laughing gas
nitrous oxide.
manure gas poisoning
see manure pit gas poisoning.
tear gas
a gas that produces severe lacrimation by irritating the conjunctivae. See lacrimator.
gas transport
relates to the efficiency of transport of gas, e.g. oxygen, by the patient as a whole. The efficiency of gas transport varies widely between normal individuals and between species, e.g. athletic breeds of horses and dogs have much faster gas transport systems than human athletes; the efficiency of gas transport in the individual depends largely on the rapidity of increase in minute ventilation, plus a similar rate of increase in cardiac output.
gas tube
References in periodicals archive ?
In an all too common act of collective punishment, the IOF did not only target the demonstrators with tear gas and rubber coated metal bullets, but also sprayed civilian homes in the village with foul smelling 'skunk water'.
The doctor said if everyone suffering from tear gas inhalation were to come to the SMC, "we would have no other job to do".
People who fled the tear gas were seen berating the soldiers.
Tear gas fired into crammed crowds must be permanently banned.
The police advanced down Cote d'Abraham, indiscriminately shooting tear gas and rubber bullets into alleys and driveways.
The deadly effects of tear gas would only occur following exposure to a dosage several hundred times greater than the amount of tear gas typically used by law enforcement officials for crowd control.
Bilin residents have been protesting every Friday against Israelae1/4aos confiscation of Palestinian land for over 11 years now, and have often been met with tear gas, rubber-coated steel bullets and stun grenades from Israeli forces.
He added that many residents suffered the effects of tear gas inhalation, especially after the Israeli soldiers targeted a number of homes in the town.
Dangerous effects of tear gas and scientific studies in that area were explained during the symposium titled "Tear gas should be banned" at Medicine Faculty of ystanbul University with the participation of prominent experts.
Eyewitnesses said that Israeli forces fired tear gas bombs at Jerusalemites while heading to perform Isha prayers (the night-time daily prayer) on Sunday.
BETHLEHEM, May 21, 2017 (WAFA) -- A seven-year-old Palestinian student was struck in the head with a tear gas canister during clashes that broke out in al-Khader town to the south of Bethlehem, said local sources.