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Longman Dictionary of Contemporary English
▪ But only a small number of cases have actually been linked to chlorine by-products.
▪ Exposed to sun and chlorine for six to seven hours a day, they pile on anything that will protect their skin.
▪ It showed how much lead and chlorine was in it.
▪ My eyes were stinging from the chlorine.
▪ The familiar dark soured then stung with chlorine.
▪ They are about 8 microns in diameter and probably consist largely of chlorides, that is, of compounds containing chlorine.
▪ Water treatment facilities are non-existent in the area, with chemicals such as chlorine unobtainable to stop the outbreak.
The Collaborative International Dictionary

Chlorine \Chlo"rine\, n. [Gr. ? pale green, greenish yellow. So named from its color. See Yellow.] (Chem.) One of the elementary substances, commonly isolated as a greenish yellow gas, two and one half times as heavy as air, of an intensely disagreeable suffocating odor, and exceedingly poisonous. It is abundant in nature, the most important compound being common salt (Sodium chloride). It is powerful oxidizing, bleaching, and disinfecting agent. Symbol Cl. Atomic weight, 35.4.

Chlorine family, the elements fluorine, chlorine, bromine, and iodine, called the halogens, and classed together from their common peculiarities.

Douglas Harper's Etymology Dictionary

nonmetallic element, the name coined 1810 by English chemist Sir Humphry Davy (1778-1829) from Latinized form of Greek khloros "pale green" (see Chloe) + chemical suffix -ine (2). Named for its color. Discovered 1774, but known at first as oxymuriatic acid gas, or dephlogisticated marine acid.


n. A toxic, green, gaseous chemical element (''symbol'' Cl) with an atomic number of 17.


n. a common nonmetallic element belonging to the halogens; best known as a heavy yellow irritating toxic gas; used to purify water and as a bleaching agent and disinfectant; occurs naturally only as a salt (as in sea water) [syn: Cl, atomic number 17]

Chlorine (2013 film)

Chlorine is a 2013 American comedy-drama film directed and written by Jay Alaimo. Filming mainly took place in Madison, New Jersey and Wayne, New Jersey.

Chlorine (2015 film)

Chlorine is a 2015 drama film written and directed by Lamberto Sanfelice and starring Sara Serraiocco. It was entered into the World Cinema Dramatic competition at the 2015 Sundance Film Festival. Sanfelice was nominated for Best New Director at the 2015 David di Donatello Awards.


Chlorine is a chemical element with symbol Cl and atomic number 17. It has a relative atomic mass of about 35.5. Chlorine is in the halogen group (17) and is the second lightest halogen, following fluorine. The element is a yellow-green diatomic gas under standard conditions. Chlorine has the highest electron affinity and the third highest electronegativity of all the reactive elements. For this reason, chlorine is a strong oxidizing agent. Free chlorine is rare on Earth, and is usually a result of direct or indirect oxidation by oxygen.

The most common compound of chlorine, sodium chloride (common salt), has been known since ancient times. Around 1630, chlorine gas was first synthesized in a chemical reaction, but not recognized as a fundamentally important substance. Carl Wilhelm Scheele wrote a description of chlorine gas in 1774, supposing it to be an oxide of a new element. In 1809, chemists suggested that the gas might be a pure element, and this was confirmed by Sir Humphry Davy in 1810, who named it from .

Nearly all chlorine in the Earth's crust is in the form of ionic chloride compounds, which includes table salt. It is the second most abundant halogen and 21st most abundant chemical element in Earth's crust. Elemental chlorine is commercially produced from brine by electrolysis. The high oxidizing potential of elemental chlorine led to the development of commercial bleaches and disinfectants, and a reagent for many processes in the chemical industry. Chlorine is used in the manufacture of a wide range of consumer products, about two-thirds of them organic chemicals such as polyvinyl chloride, and many intermediates for production of plastics and other end products which do not contain the element. As a common disinfectant, elemental chlorine and chlorine-generating compounds are used more directly in swimming pools to keep them clean and sanitary.

In the form of chloride ions, chlorine is necessary to all known species of life. Other types of chlorine compounds are rare in living organisms, and artificially produced chlorinated organics range from inert to toxic. In the upper atmosphere, chlorine-containing organic molecules such as chlorofluorocarbons have been implicated in ozone depletion. Small quantities of elemental chlorine are generated by oxidation of chloride to hypochlorite in neutrophils as part of the immune response against bacteria.

Elemental chlorine at high concentrations is extremely dangerous and poisonous for all living organisms, and was used in World War I as the first gaseous chemical warfare agent.

Usage examples of "chlorine".

The two combined to produce chlorine and Mr Grabble was driven from his house by the poisonous gas.

From chloride of sodium, which is nothing else than sea salt, Cyrus Harding easily extracted the soda and chlorine.

The author is uncertain whether to attribute the complete disappearance of the phenomenon to the higher temperature of the season, or to phenic acid, or to fumigation with chlorine.

Chlorine put some peanut butter on her finger for Tweeter to eat, and it was good, because there were some peanut chunks in it.

When they leaked the salt water was apt to affect the accumulators and chlorine gas was released to torment and suffocate the crews.

This time, they used the chlorine dioxide gas in the ventilation system in those sections of the building where traces of anthrax were found and the liquid form of chlorine dioxide in the office suite itself.

Martin will carry a liter of sodium hypochlorite in case of a spill and I will carry a cylinder of chlorine dioxide if we need to fumigate.

But where pollutants from humanplayer stay in pool, use chlorine donor to obtain efficient disinfectant residual: Sodium Hypochlorite dispensed via automatic dosing pump.

It closely resembles chlorine and bromine in its properties, and can be used for dissolving metals without, at the same time, attacking any oxide which may be present.

The Neutralizer was still operating, for its blinking lights had shown against the background of the chlorine mist.

This mechanism sustained a population of chlorine atoms in the upper atmosphere, which resulted in a palish chartreuse sky illuminated by a greeny-yellow sun.

When the sulphuric oxide has been satisfied, the chlorine is distributed, taking the bases in the same order, then the nitric pentoxide, and lastly the carbon dioxide.

It is easier to use perchloroethylene, which is a liquid at ordinary temperature and pressure, and which is made up of molecules that each contain two carbon atoms and four chlorine atoms.

Now, somewhere along the line, when these guys were trying to design a plasmid to change covalent chlorine to ionic, they had to consider the possibility of making it go the other way.

In their innocence they will jam the fan which drives the chlorine, not knowing or caring that this lack of chlorine will end for a time the production on this planet of polychloroprene without which oil-resistant gaskets cannot be manufactured.