Meaning of “helix” in the English Dictionary

"helix" in English

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helixnoun [ C ]

uk /ˈhiː.lɪks/ us /ˈhiː.lɪks/ plural helices

helix noun [ C ] (OF EAR)

specialized anatomy the curved edge around the top of the outer ear :

The helix is a popular site for ear piercings.
adjective uk /ˈhiː.lɪ.kəl/ us /ˈhiː.lɪ.kəl/ specialized

in the shape of a helix:

helical molecules
a helical structure

(Definition of “helix” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"helix" in American English

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helixnoun [ C ]

/ˈhi·lɪks/ helix or helices /ˈhel·əˌsiz, ˈhi·lə-/

geometry a shape curving continuously around a center point as of a line wrapped around a cylinder or a cone; a spiral

(Definition of “helix” from the Cambridge Academic Content Dictionary © Cambridge University Press)