Definition of chlorine Chlorine

/klɔˈɹin/ - [kloreen] - chlo•rine

We found 7 definitions of chlorine from 7 different sources.

What does chlorine mean?

WordNet

Noun Plural: chlorines
chlorine - 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)
		Cl, atomic number 17
		chemical element, element the most favorable environment for a plant or animal; "water is the element of fishes"
		gas the state of matter distinguished from the solid and liquid states by: relatively low density and viscosity; relatively great expansion and contraction with changes in pressure and temperature; the ability to diffuse readily; and the spontaneous tendency to become distributed uniformly throughout any container
		halogen any of five related nonmetallic elements (fluorine or chlorine or bromine or iodine or astatine) that are all monovalent and readily form negative ions
		sodium chloride, common salt a white crystalline solid consisting mainly of sodium chloride (NaCl)

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Wiktionary

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

Webster DictionaryWebster's Unabridged Dictionary 📘

chlorine (n.)
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. It is powerful oxidizing, bleaching, and disinfecting agent. Symbol Cl. Atomic weight, 35.4.

OmegaWiki DictionaryOmegaWiki Dictionary Ω

chlorine
A very reactive and highly toxic green, gaseous element, belonging to the halogen family of substances with symbol Cl and atomic number 17.

Chambers DictionaryChamber's 20th Century Dictionary 📕

chlorine
klō′rin, n. a yellowish-green gas with a peculiar and suffocating odour.—ns. Chlō′ral, a limpid, colourless, oily liquid, with a peculiar penetrating odour, formed when anhydrous alcohol is acted on by dry chlorine gas; Chlō′ralism, the habit of using chloral, a morbid state induced by such; Chlō′rate, a salt composed of chloric acid and a base.—adj. Chlō′ric, of or from chlorine.—n. Chlō′ride, a compound of chlorine with some other substance, as potash, soda, &c.—v.t. Chlō′ridise, to convert into a chloride: (phot.) to cover with chloride of silver—also Chlō′ridate.—n. Chlorinā′tion, the process of getting gold, &c., out of ore by the use of chlorine.—v.t. Chlō′rinise, to combine or otherwise treat with chlorine—also Chlō′rinate.—ns. Chlō′rite, a mineral consisting of silica, alumina, &c., in variable proportions—it is of a green colour, rather soft, and is easily scratched with a knife; Chlō′rodyne, a patent medicine containing opium, chloroform, &c., used for allaying pain and inducing sleep; Chlō′roform, a limpid, mobile, colourless, volatile liquid, with a characteristic odour and a strong sweetish taste, used to induce insensibility.—adj. Chlō′roid, like chlorine.—ns. Chlōrom′eter, an instrument for measuring the bleaching powers of chloride of lime; Chlōrom′etry, the process of testing the decolouring power of any compound of chlorine; Chlō′rophyl, the ordinary colouring matter of vegetation, consisting of minute soft granules in the cells; Chlorō′sis, properly green-sickness, a peculiar form of anæmia or bloodlessness, common in young women, and connected with the disorders incident to the critical period of life.—adjs. Chlōrot′ic, pertaining to chlorosis; Chlō′rous, full of chlorine.—Chloric acid, a syrupy liquid, with faint chlorine colour and acid reaction. [Gr. chlōros, pale-green.]

Wikipedia

Chlorine (chemical symbol Cl) is a chemical element. Its atomic number (which is the number of protons in it) is 17, and its atomic mass is 35.45. It is part of the Group 7 (halogens) on the periodic table of elements. A highly irritating, greenish-yellow gaseous halogen, capable of combining with nearly all other elements, produced principally by electrolysis of sodium chloride and used widely to purify water(usually in a swimming pool), as a disinfectant and bleaching agent, and in the manufacture of many important compounds including chloroform and carbon tetrachloride. Atomic number 17; atomic weight 35.453; freezing point -100.98°C; boiling point -34.6°C; specific gravity 1.56 (-33.6°C); valence 1, 3, 5, 7. it was discovered in 1774 by Carl Wilhelm Scheele who thought it contained oxygen. Chlorine was named in 1810 by Humphry Davy who insisted it was an element.

Preventive Uses, dangers.

Chlorine is used in a swimming pool to destroy bacteria. It is poisonous in large amounts and can damage skin. Chlorine is a chemical component in salt.