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Definition of halogen

halogen

/ˈhæl.ə.dʒən/
hal · o · gen

Plural:halogens
•
Adjective:halogenous
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halogen Lexical Profile

halogen Game Scores & Validity

• noun

1

Any of the group of reactive nonmetallic chemical elements in Group 17 of the periodic table—including fluorine, chlorine, bromine, iodine, and astatine—that form strongly acidic compounds with hydrogen and simple salts with metals.

Example

"Chlorine is a widely used halogen that plays an essential role in water purification and sanitation."


2

A high-intensity incandescent lamp or bulb containing a small amount of a halogen gas such as iodine or bromine surrounding a tungsten filament.

Example

"The photographer adjusted the studio's overhead halogens to eliminate harsh shadows on the subject."

• adjective

1

Relating to, containing, or utilizing a halogen element, especially in reference to incandescent lamps that use a small amount of a halogen gas to increase brightness and lifespan.

Example

"We replaced the old floodlights in the garage with energy-efficient alternatives because the halogen bulbs generated too much heat."

• Rhymes for halogen

Word Origin & Etymology

Coined in the early 19th century by Swedish chemist Jöns Jakob Berzelius from the Ancient Greek 'hals' (salt) and '-genēs' (born of or producing), referring to the ability of these elements to form salts when combined with metals.

Cite this Entry


Wordmom. (2026). Definition of Halogen. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/halogen
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