halogen
n. any of a number of electronegative elements which form a salt when united with metals (Chemistry) | ||||
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Halogen definition was found in categories: Language, Idioms & Slang(2) Society & Culture(2) Medicine(1) Science & Technology(1) Arts & Humanities(1) Encyclopedia(1)
Halogen Definition from Language, Idioms & Slang Dictionaries & Glossaries
| Webster's Revised Unabridged Dictionary (1913) |
Halogen
(n.)
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.
(n.)
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.
| WordNet 2.0 |
halogen
Noun
1. any of five related nonmetallic elements (fluorine or chlorine or bromine or iodine or astatine) that are all monovalent and readily form negative ions
(hypernym) group, grouping
(hyponym) astatine, At, atomic number 85
Noun
1. any of five related nonmetallic elements (fluorine or chlorine or bromine or iodine or astatine) that are all monovalent and readily form negative ions
(hypernym) group, grouping
(hyponym) astatine, At, atomic number 85
Halogen Definition from Society & Culture Dictionaries & Glossaries
| EPA Terms of Environment |
Halogen
A type of incandescent lamp with higher energy-efficiency that standard ones.
A type of incandescent lamp with higher energy-efficiency that standard ones.
| Environmental Engineering (English ver.) |
halogen
One of the chemical elements chlorine, bromine, or iodine.
One of the chemical elements chlorine, bromine, or iodine.
Halogen Definition from Medicine Dictionaries & Glossaries
| The Glossary of the American Council on Science and Health |
halogen
Any of a group of five nonmetallic elements that unite directly with metal to produce salts and that in their pure form typically exist as pairs of identical atoms. The halogens are fluorine, chlorine, bromine, iodine, and astatine (which is radioactive).
Any of a group of five nonmetallic elements that unite directly with metal to produce salts and that in their pure form typically exist as pairs of identical atoms. The halogens are fluorine, chlorine, bromine, iodine, and astatine (which is radioactive).
Halogen Definition from Science & Technology Dictionaries & Glossaries
| General Chemistry Glossary |
halogen (group VIIA; group 18)
An element of group VIIA (a. k. a. Group 18). The name means "salt former" halogens react with metals to form binary ionic compounds. Fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At) are known at this time.
An element of group VIIA (a. k. a. Group 18). The name means "salt former" halogens react with metals to form binary ionic compounds. Fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At) are known at this time.
Halogen Definition from Arts & Humanities Dictionaries & Glossaries
| Lighting |
HALOGEN
(SEE TUNGSTEN HALOGEN LAMP)
(SEE TUNGSTEN HALOGEN LAMP)
Halogen Definition from Encyclopedia Dictionaries & Glossaries
| Wikipedia English - The Free Encyclopedia |
Halogen
The halogens or halogen elements are a series of nonmetal elements from Group 17 (old-style: VII or VIIA; Group 7 IUPAC Style) of the periodic table, comprising fluorine, F; chlorine, Cl; bromine, Br; iodine, I; and astatine, At. The undiscovered element 117, temporarily named ununseptium, may also be considered a halogen.
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