hal·o·gen
ˈha-lə-jən 
: 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
: containing, using, or being a halogen
a halogen lamp
Examples of halogen in a Sentence
Recent Examples on the Web
Serenity Mirabito, Rn, Health, 19 June 2024
The lamp uses a 50-watt halogen bulb that melts the candle from the top down — without having to light a match.
—Monica Bell, Peoplemag, 8 Apr. 2024
Daniel Gray, Ars Technica, 16 Mar. 2020
On Home Depot’s website, the group found different prices quoted for paint, light bulbs, toilet paper, caulk guns, halogen floor lamps, screwdrivers and more.
—Levi Sumagaysay, The Mercury News, 25 June 2019
See all Example Sentences for halogen 
Noun
Fluorescent, compact fluorescent, and halogen bulbs give off UV light, which can trigger a flare.
Take a vitamin D supplement: The sun is a natural source of vitamin D.
—Serenity Mirabito, Rn, Health, 19 June 2024
The lamp uses a 50-watt halogen bulb that melts the candle from the top down — without having to light a match.
—Monica Bell, Peoplemag, 8 Apr. 2024
Adjective
While halogen filaments deliver 360-degree illumination, LED bulbs typically emit light with a pair of back-to-back 180-degree planes.
—Daniel Gray, Ars Technica, 16 Mar. 2020
On Home Depot’s website, the group found different prices quoted for paint, light bulbs, toilet paper, caulk guns, halogen floor lamps, screwdrivers and more.
—Levi Sumagaysay, The Mercury News, 25 June 2019
See all Example Sentences for halogen
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'halogen.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Dictionary Entries Near halogen
Cite this Entry
“Halogen.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/halogen. Accessed 27 Jul. 2024.
Copy CitationKids Definition
halogen
1 of 2 noun
hal·o·gen
ˈhal-ə-jən
: any of the elements fluorine, chlorine, bromine, iodine, and astatine
halogen
2 of 2 adjective
: containing, using, or being a halogen
a halogen lamp
Medical Definition
halogen
noun
halo·gen
ˈhal-ə-jən
: 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
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