double helix double half-round file • double indemnity · · · Info · Definitions · Characters · · double helix · · Text Common · · Latin · · Scripts 12 · · Length 4 · · Syllables Definitions · · · (noun) a pair of parallel helices intertwined about a common axis. Synonyms: double helix. Example: "The shape of the dna molecule is a double helix." · · Noun Definition 1 Characters · · space U+0020 b latin small letter b U+0062 d latin small letter d U+0064 e latin small letter e U+0065 h latin small letter h U+0068 i latin small letter i U+0069 l latin small letter l U+006C o latin small letter o U+006F u latin small letter u U+0075 x latin small letter x U+0078