Helios

noun

He·​li·​os ˈhē-lē-əs How to pronounce Helios (audio)
-(ˌ)ōs
: the god of the sun in Greek mythology compare sol

Examples of Helios in a Sentence

Recent Examples on the Web
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Phaethon, a reference to the Greek mythological figure who drove the Sun-god Helios' chariot, because its orbit brings it into close proximity to the Sun. Connor Greene, Time, 11 Dec. 2025 The small asteroid, which is little more than 3 miles in diameter, approaches so close to the sun that it was named for the son of the sun-god Helios, who in Greek mythology lost control of his father's chariot and set the Earth ablaze. Eric Lagatta, USA Today, 10 Dec. 2025 Other cryptography used by Helios allows each voter to confirm their ballot was counted fairly. ArsTechnica, 22 Nov. 2025 Quantinuum has introduced Helios, its most advanced quantum computer yet, setting new records in performance, fidelity, and scalability. Aamir Khollam, Interesting Engineering, 6 Nov. 2025 See All Example Sentences for Helios

Word History

Etymology

Greek Hēlios

First Known Use

1829, in the meaning defined above

Time Traveler
The first known use of Helios was in 1829

Cite this Entry

“Helios.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Helios. Accessed 19 Dec. 2025.

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