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from The American Heritage® Dictionary of the English Language, 4th Edition

  • 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.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A metonym for DNA.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a pair of parallel helices intertwined about a common axis


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