helix

noun

he·​lix ˈhē-liks How to pronounce helix (audio)
plural helices ˈhe-lə-ˌsēz How to pronounce helix (audio) ˈhē- How to pronounce helix (audio) also helixes ˈhē-lik-səz How to pronounce helix (audio)
1
: something spiral in form: such as
a
: an ornamental volute
b
: a coil formed by winding wire around a uniform tube
2
: the incurved rim of the external ear
3
: a curve traced on a cylinder or cone by the rotation of a point crossing its right sections at a constant oblique angle
broadly : spiral sense 1b

Examples of helix in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Hidden helix Courtesy of Studs Courtesy of Robbie Milian/@nyc.piercing Robbie Milian, a piercer at Refinery7 in New York City, predicts that unique helix piercings, particularly the hidden helix, will become more popular in 2025. Jesa Marie Calaor, Allure, 25 Jan. 2025 The viewing areas on stadium helixes allow fans to see various parts of the track from one location. David J. Neal, Miami Herald, 13 Feb. 2025 The shape of the dish was important, because when an ordinary wave of radiation from the antenna horn struck it, what reflected off was a wave whose phase was shifted into the shape of a continuous helix, corresponding to an orbital angular momentum of 1. IEEE Spectrum, 25 Apr. 2012 Plus: Rowan offers ear piercings beyond just the lobe, including the helix and tragus — a trend that's popular not only with teens, but increasingly their moms as well. Linh Ta, Axios, 31 Jan. 2025 See All Example Sentences for helix

Word History

Etymology

Latin, from Greek; akin to Greek eilyein to roll, wrap — more at voluble

First Known Use

1563, in the meaning defined at sense 1

Time Traveler
The first known use of helix was in 1563

Browse Nearby Words

Cite this Entry

“Helix.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/helix. Accessed 31 Mar. 2025.

Kids Definition

helix

noun
he·​lix ˈhē-liks How to pronounce helix (audio)
plural helices ˈhel-ə-ˌsēz How to pronounce helix (audio)
ˈhē-lə-
also helixes ˈhē-lik-səz How to pronounce helix (audio)
: a curve that is formed by a point rotating around a straight line and moving forward in a direction parallel to that line compare double helix
helical
ˈhel-i-kəl
ˈhē-li-
adjective

Medical Definition

helix

noun
he·​lix ˈhē-liks How to pronounce helix (audio)
plural helices ˈhel-ə-ˌsēz How to pronounce helix (audio) ˈhē-lə- How to pronounce helix (audio) also helixes ˈhē-lik-səz How to pronounce helix (audio)
1
: the incurved rim of the external ear
2
: a curve traced on a cylinder by the rotation of a point crossing its right sections at a constant oblique angle

More from Merriam-Webster on helix

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