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Cs
(redirected from caesium)

   Also found in: Dictionary/thesaurus, Medical, Wikipedia, Hutchinson 0.03 sec.

Cs, chemical symbol

Cs, symbol for the element cesium cesium (sē`zēəm) [Lat.,=bluish gray], a metallic chemical element; symbol Cs; at. no. 55; at. wt. 132.9054; m.p. 28.4°C;; b.
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CS, chemical compound

CS, chemical compound (orthochlorobenzalmalonitrile) used in riot control and, by the military, as a harassing agent. The compound is dispersed as an aerosol or as a finely divided powder. Exposure to CS causes intense pain in the eyes and upper respiratory tract; the pain spreads to the lungs and gives the sensation of suffocation. In humid weather CS may cause severe blistering of the skin. Heavy exposure to the compound may cause serious lung damage, resulting in death. Nonetheless, CS is less toxic than many other tear gases tear gas, gas that causes temporary blindness through the excessive flow of tears resulting from irritation of the eyes. The gas is used in chemical warfare and as a means for dispersing mobs.
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. CS was first synthesized in the 1920s by Ben Corson and Roger Stoughton; the compound's name is derived from their initials.

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[Cicero], IV, xlix 63: Effictio est cum exprimatur atque effingitur verbis corporis cuispiam forma quoad satis sit ad intellegendum, hoc modo: 'Hunc, iudices, dico, rubrum, brevem, incurvum, canum, subscrispum, caesium, cui sane magna esta in mento cicatrix.
The caesium isotopes have relatively longer half-lives and cause longer-term exposures through ingestion and external exposure from their deposition on the ground.
 
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