halogen

noun

hal·o·gen | \ ˈha-lə-jən

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

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Examples of halogen in a Sentence

Recent Examples on the Web: Noun

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 Our car also came with 18-inch alloy wheels, automatic projector-beam halogen headlights. — G. Chambers Williams Iii, star-telegram, "C-HR brings small crossover entry to Toyota lineup, starting at $22,500 | Fort Worth Star-Telegram," 28 Apr. 2018 There are three main types of driving lights: halogen, LED (light-emitting diode) and HID (high-intensity discharge). — Timothy Dahl, Popular Mechanics, "How to Install Your Own Driving Lights," 10 May 2017 The Maxima also came with speed-sensitive hydro-electric power steering, heated outside mirrors with turn signals, front and rear parking sensors, front halogen fog lights, LED daytime running lights and LED low-beam headlights. — G. Chambers Williams Iii, Houston Chronicle, "Nissan Maxima: 'Four-door sports car' gets some upgrades for 2018," 9 Feb. 2018 Many are leaving out plasticizers, phthalates, formaldehyde, chlorine, halogen and heavy metals. — Clare Miers, star-telegram, "Wallpaper is back! Here, local design experts talk the trends and share their picks | Fort Worth Star-Telegram," 15 Mar. 2018 The Maxima also came with speed-sensitive hydro-electric power steering, heated outside mirrors with turn signals, front and rear parking sensors, front halogen fog lights, LED daytime running lights and LED low-beam headlights. — G. Chambers Williams Iii, Houston Chronicle, "Nissan Maxima: 'Four-door sports car' gets some upgrades for 2018," 9 Feb. 2018 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. — Michael Austin, Popular Mechanics, "How to Make Your Headlights Shine Like New," 1 Dec. 2017

Recent Examples on the Web: Adjective

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.

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Last Updated

22 Jan 2019

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Time Traveler for halogen

The first known use of halogen was in 1842

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More Definitions for halogen

halogen

noun

halo·gen | \ ˈhal-ə-jən

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