Chlorine Definition

klôrēn, -ĭn
noun
A greenish-yellow, poisonous, gaseous chemical element, one of the halogens, having a disagreeable odor and obtained by electrolysis of certain chlorides: it is used as a bleaching agent, in water purification, in various industrial processes, etc.: symbol, Cl; at. no. 17
Webster's New World

(physics) The major stable isotope of chlorine, 3517Cl, having seventeen protons and eighteen neutrons; it amounts to about 76% of the element in nature.

Wiktionary

(physics) A long-lived radioactive isotope of chlorine, 3617Cl, having seventeen protons and nineteen neutrons, and a half-life of 3x105 years; it can be used to date samples of groundwater.

Wiktionary

(physics) The minor stable isotope of chlorine, 3717Cl, having seventeen protons and twenty neutrons; it amounts to about 24% of the element in nature.

Wiktionary
Synonyms:
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Origin of Chlorine

  • Coined by Sir Humphry Davy from Ancient Greek χλωρός (khlōros, “pale green”)

    From Wiktionary

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