helix

noun

he·​lix ˈhē-liks 

plural helices ˈhe-lə-ˌsēz  ˈhē-  also helixes ˈhē-lik-səz 

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

The self-torturing helices of thought twisting inside the young minds on the courts are no less fraught than the recursive neuroses tormenting the addicts down the hill. —Hermione Hoby, New Yorker, 26 Jan. 2026

The faux snug pairs a conch with a helix or double-helix piercing, while the faux rook is one piercing in the upper inner cartilage with a dangle or drop-style jewelry to mimic the look of a traditional rook piercing. —Marianne Mychaskiw, Allure, 24 Jan. 2026

James Watson and Francis Crick (Medicine) Watson and Crick, along with Maurice Wilkins, were awarded the 1962 prize in Medicine for discovering the double-helix structure of DNA in 1953, a breakthrough that propelled the field of molecular biology. —Connor Greene, Time, 16 Jan. 2026

The authors have structured the work as a triple helix, and some of the most powerful moments occur when all three incarnations of the characters are on stage at the same time. —Theater Critic, Los Angeles Times, 9 Jan. 2026

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

Phrases Containing helix

• alpha-helix
• double helix

Rhymes for helix

• felix

Kids Definition

helix

noun

he·​lix ˈhē-liks 

plural helices ˈhel-ə-ˌsēz 

ˈhē-lə-

also helixes ˈhē-lik-səz 

: 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 

plural helices ˈhel-ə-ˌsēz  ˈhē-lə-  also helixes ˈhē-lik-səz 

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

broadly : spiral sense 2 see alpha-helix, double helix