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superhelix

[soo-per-hee-liks]
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noun, plural su·per·hel·i·ces [soo-per-hel-uh-seez] /ˈsu pərˌhɛl əˌsiz/, su·per·he·lix·es. Biochemistry.
  1. a coil formed by intertwined helical DNA or by protein chains.
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Origin of superhelix

Also called supercoil.
Related formssu·per·hel·i·cal [soo-per-hel-i-kuh l, -hee-li-] /ˌsu pərˈhɛl ɪ kəl, -ˈhi lɪ-/, adjectivesu·per·he·lic·i·ty [soo-per-huh-lis-i-tee] /ˌsu pər həˈlɪs ɪ ti/, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018