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English definition of “helix”

helix

noun [C] uk   /ˈhiː.lɪks/ (plural helices) specialized us  
a curve that goes around a central tube or cone shape in the form of a spiral
helical
adjective uk   /-lɪ.kəl/ specialized us  
in the shape of a helix: helical molecules a helical structure
(Definition of helix from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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