halogen

noun
hal·​o·​gen | \ ˈha-lə-jən How to pronounce halogen (audio) \

Definition of halogen

 (Entry 1 of 2)

: 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

halogen

adjective

Definition of halogen (Entry 2 of 2)

: containing, using, or being a halogen a halogen lamp

Keep scrolling for more

Other Words from halogen

Noun

halogenous \ ha-​ˈlä-​jə-​nəs How to pronounce halogenous (audio) \ adjective

Examples of halogen in a Sentence

Recent Examples on the Web: Noun

With halogen stadium lights, a ceramic infrared top burner, a trellis burner design that provides more (and more precise) heat coverage, and a one-push automatic ignition system, this grill is a treat. Kelly Dawson, House Beautiful, "How to Clean a Grill Without Soap and Water," 14 Aug. 2019 Roger steered his small aluminum boat through the lagoon while Aaron shone a powerful halogen spotlight on the water’s surface. Ngm Maps, National Geographic, "‘This photograph was the hardest I’ve ever had to make’," 1 Aug. 2019 As well as daylight, halogen spotlights illuminated his bench. The Economist, "Obituary: David Esterly died on June 15th," 28 June 2019 Researchers have instead been using halogen lights inside the lab. Leah Asmelash And Saeed Ahmed, CNN, "Meet Harvard's RoboBee microrobot, the lightest machine to ever take flight," 27 June 2019 The first group, known as the alkali metals, has just one such electron, easy to lose when reacting with an element that has more electrons, such as one from the 17th group, the halogens. Bill Andrews, Discover Magazine, "Everything Worth Knowing About The Periodic Table," 26 June 2019 All 30,000 lights were upgraded from standard halogen lights to LED lights in April. Anna Beahm | Abeahm@al.com, al.com, "Birmingham approves city park lighting upgrade," 11 June 2019 These all chemical elements from the halogen group of the periodic table. David Grossman, Popular Mechanics, "Scientists Discover New Details on How the "Great Dying" Nearly Ended Life on Earth," 28 Aug. 2018 Armada for 2018 maintains the rugged, athletic image of the previous generation with contemporary style, with the bold V-motion front grille, standard LED low-beam headlights with halogen high beams and LED Daytime Running Lights. Emma Jayne Williams, star-telegram, "Nissan Armada full-size SUV has plentyof room for the family, lots of technology," 17 June 2018

Recent Examples on the Web: Adjective

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, "FTC urged to probe ‘secret surveillance scores’ used against shoppers, job and housing applicants," 25 June 2019 Test Results: Maximum Cubby Storage Exterior Measurement Comparisons Every 124 Spider comes standard with a manual softtop that’s effortless to fold down, plus halogen headlights and LED taillights. Car and Driver, "2018 Fiat 124 Spider," 2 Nov. 2017

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.

See More

First Known Use of halogen

Noun

1842, in the meaning defined above

Adjective

1880, in the meaning defined above

History and Etymology for halogen

Noun

Swedish, from hal- + -gen

Keep scrolling for more

Keep scrolling for more

More Definitions for halogen

halogen

noun
halo·​gen | \ ˈhal-ə-jən How to pronounce halogen (audio) \

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

Other Words from halogen

halogenous \ ha-​ˈläj-​ə-​nəs How to pronounce halogenous (audio) \ adjective