Definition of helix noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ˈhiːlɪks//
; NAmE NAmE//ˈhiːlɪks//
(pl. helices
BrE BrE//ˈhiːlɪsiːz//
; NAmE NAmE//ˈhiːlɪsiːz//
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a shape like a spiral or a line curved around a cylinder or cone see also double helix Word Originmid 16th cent. (in the architectural sense ‘spiral ornament’): via Latin from Greek.
See the Oxford Advanced American Dictionary entry: helix

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