Definition of halogen
:any of the five elements fluorine, chlorine, bromine, iodine, and astatine that form part of group VIIA of the periodic table and exist in the free state normally as diatomic molecules
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Recent Examples of halogen from the Web
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A single 600-watt halogen bulb hangs inside a huge steel cube into which intricate patterns have been cut.
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The glasses should not allow anything through except light from the sun or something similarly bright, such as a bright halogen light bulb, according to the society.
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Other bulbs that have been used to meet the requirements include the ubiquitous curly compact florescent, or CFL, bulbs and halogen lights.
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July 17 * A caller reported that halogen lights were stolen from her residence and were being sold online.
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Hamburg, Germany (CNN)Julia Reusing stood teary eyed under a strip of halogen lights in Hamburg's red light district as the late summer sun's lingering light turned to dusk.
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Most headlights use one of three different light sources: halogen, high-intensity discharge (HID) or LED.
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Most cars and a lot of trucks today are manufactured with headlamp assemblies that use quartz-halogen bulbs plugged into the back of a large plastic reflector.
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The Viper, which is 15 inches by 8 inches, has halogen lights in the rear that can be activated and was the principal model used in promotional images.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'halogen.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of halogen
First Known Use of halogen
1880
Medical Dictionary
medical Definition of halogen
:any of the five elements fluorine, chlorine, bromine, iodine, and astatine that form part of group VII A of the periodic table and exist in the free state normally as diatomic molecules
Learn More about halogen
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Britannica.com: Encyclopedia article about halogen
Seen and Heard
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