double helix
double helix
nounDefinition of DOUBLE HELIX
: a helix or spiral consisting of two strands in the surface of a cylinder that coil around its axis; especially : the structural arrangement of DNA in space that consists of paired polynucleotide strands stabilized by cross-links between purine and pyrimidine bases — compare alpha-helix, watson-crick model
— dou·ble–he·li·cal \-ˈhe-li-kəl, -ˈhē-\ adjective
See First Known Use of DOUBLE HELIX
1954
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