Definitions for halogen
ˈhæl ə dʒən, -ˌdʒɛn, ˈheɪ lə-halo·gen

Princeton's WordNetRate this definition:4.5 / 2 votes

1. halogennoun

   any of five related nonmetallic elements (fluorine or chlorine or bromine or iodine or astatine) that are all monovalent and readily form negative ions

WiktionaryRate this definition:0.0 / 0 votes

1. halogennoun

   Any element of group 7, i.e. fluorine, chlorine, bromine, iodine and astatine, which form a salt by direct union with a metal.

2. Etymology: From ἅλς + -gen, referring to elements which produce a salt in union with a metal.

WikipediaRate this definition:0.0 / 0 votes

1. Halogen

   The halogens () are a group in the periodic table consisting of six chemically related elements: fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (At), and tennessine (Ts), though some authors would exclude tennessine as its chemistry is unknown and is theoretically expected to be more like that of gallium. In the modern IUPAC nomenclature, this group is known as group 17.The word "halogen" means "salt former" or "salt maker". When halogens react with metals, they produce a wide range of salts, including calcium fluoride, sodium chloride (common table salt), silver bromide and potassium iodide.The group of halogens is the only periodic table group that contains elements in three of the main states of matter at standard temperature and pressure, though not far above room temperature the same becomes true of groups 1 and 15, assuming white phosphorus is taken as the standard state. All of the halogens form acids when bonded to hydrogen. Most halogens are typically produced from minerals or salts. The middle halogens—chlorine, bromine, and iodine—are often used as disinfectants. Organobromides are the most important class of flame retardants, while elemental halogens are dangerous and can be toxic.

ChatGPTRate this definition:0.0 / 0 votes

1. halogen

   A halogen is any of the elements in group 17 (formerly group VIIA) of the periodic table, namely fluorine, chlorine, bromine, iodine, and astatine. These elements are characterized by their high reactivity and the fact that they exist in nature as salts or other compounds rather than as pure elements. They are capable of gaining an electron to achieve a stable electron configuration and are often involved in chemical reactions as oxidizing agents.

Webster DictionaryRate this definition:4.0 / 1 vote

1. Halogennoun

   an electro-negative element or radical, which, by combination with a metal, forms a haloid salt; especially, chlorine, bromine, and iodine; sometimes, also, fluorine and cyanogen. See Chlorine family, under Chlorine

2. Etymology: [Gr. "a`ls, "alo`s, salt + -gen: cf. F. halogne.]

WikidataRate this definition:5.0 / 1 vote

1. Halogen

   The halogens or halogen elements are a group in the periodic table consisting of five chemically related elements, fluorine, chlorine, bromine, iodine, and astatine. The artificially created element 117 may also be a halogen. In the modern IUPAC nomenclature, this group is known as group 17. The group of halogens is the only periodic table group which contains elements in all three familiar states of matter at standard temperature and pressure. All of the halogens form acids when bonded to hydrogen. Most halogens are typically produced from minerals of salts. The middle halogens, that is, chlorine, bromine and iodine, are often used as disinfectants. The halogens are also all toxic.

Chambers 20th Century DictionaryRate this definition:0.0 / 0 votes

1. Halogen

   hal′o-jen, n. a substance which by combination with a metal forms a saline compound.—adjs. Halog′enous; Ha′loid, like sea-salt.—ns. Hal′omancy, divination by means of salt; Hal′ophyte, the salt-wort, found in salt-marshes, &c. [Gr. hals, salt, genēs, producing.]

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1. • Group

How to pronounce halogen?

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Numerology

1. Chaldean Numerology

   The numerical value of halogen in Chaldean Numerology is: 2

2. Pythagorean Numerology

   The numerical value of halogen in Pythagorean Numerology is: 8

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References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=halogen
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Halogen
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Halogen
4. ^ ChatGPT
   https://chat.openai.com
5. ^ Webster Dictionary
   https://www.merriam-webster.com/dictionary/halogen
6. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=halogen
7. ^ Chambers 20th Century Dictionary
   https://www.gutenberg.org/files/37683/37683-h/37683-h.htm#:~:text=halogen