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helical Definition

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helical
adjective(he-li-cal)
of, relating to, or having the form of a helix; broadly : spiral
helical
noun(he-li-cal)
the coiled structural arrangement of many proteins consisting of a single chain of amino acids stabilized by hydrogen bonds
helical
noun(he-li-cal)
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

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