Antares

noun

An·​tar·​es an-ˈter-(ˌ)ēz How to pronounce Antares (audio)
-ˈtär-
: a giant red star of very low density that is the brightest star in Scorpius

Examples of Antares in a Sentence

Recent Examples on the Web
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Under the initiative, Antares will be responsible for the siting, licensing, construction, operation, and eventual decommissioning of the R1 microreactors. Aman Tripathi, Interesting Engineering, 23 Apr. 2026 The Antares reactor is designed for use on land in support of microgrids. Brandon Lingle, San Antonio Express-News, 22 Apr. 2026 But Northrop’s Antares rocket is out of service after losing access to Russian rocket engines in the aftermath of Russia’s invasion of Ukraine. Stephen Clark, ArsTechnica, 17 Apr. 2026 Both the Antares 330 and the new Eclipse rocket will launch from Virginia’s Eastern Shore from NASA’s Wallops Flight Facility, although Firefly also has a launch lease at Cape Canaveral Space Force Station. Richard Tribou, The Orlando Sentinel, 12 Mar. 2026 The Energy Department just granted Antares preliminary safety approval for its Mark-0 demonstration reactor to come online this summer in Idaho. Jordan Blum, Fortune, 7 Feb. 2026 In ancient Persian astronomy, Regulus was revered as one of the four Royal Stars, alongside Aldebaran, Fomalhaut and Antares. Valerie Mesa, PEOPLE, 26 Jan. 2026 That bright spec of light is Antares — a red supergiant star nearing the end of its stellar life cycle. Anthony Wood, Space.com, 19 Jan. 2026 But the debt-for-equity swap will result in a new stable of owners, as private equity firms Antares Capital, Fortress Investment Group and Invesco will trade in their debt claims for stakes in the business once the company exits from Chapter 11. Glenn Taylor, Sourcing Journal, 14 Jan. 2026

Word History

Etymology

Greek Antarēs

First Known Use

1588, in the meaning defined above

Time Traveler
The first known use of Antares was in 1588

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Cite this Entry

“Antares.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Antares. Accessed 27 Apr. 2026.

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