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double life
double magnum
double negation
double negative
double obelisk
double occupancy
double or nothing
double over
double-page spread
double-park
double play
double pneumonia
double-quick
double quote
double reed
double refraction
double rhyme
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double helix

dou·ble he·lix (plural dou·ble hel·i·ces or dou·ble he·lix·es)


noun 
Definition:
 
double spiral structure of DNA: the molecular structure of DNA, consisting of a pair of polynucleotide strands connected by a series of hydrogen bonds and wound in opposing spirals

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