double helix

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double helix

n.
The coiled structure of double-stranded DNA in which strands linked by hydrogen bonds form a spiral configuration, with the two strands oriented in opposite directions.

double helix

n
(Biochemistry) biochem the form of the molecular structure of DNA, consisting of two helical polynucleotide chains linked by hydrogen bonds and coiled around the same axis

dou′ble he′lix


n.
the spiral arrangement of the two complementary strands of DNA.
[1953]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.double helix - a pair of parallel helices intertwined about a common axisdouble helix - a pair of parallel helices intertwined about a common axis; "the shape of the DNA molecule is a double helix"
helix, spiral - a curve that lies on the surface of a cylinder or cone and cuts the element at a constant angle