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struc·tur·al 'strək-chə-rəl, 'strək-shrəl adj
1) of or relating to the physical makeup of a plant or animal body <\structural defects of the heart> compare FUNCTIONAL (1a)
2) of, relating to, or affecting structure <\structural stability>
struc·tur·al·ly -ē adv
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struc·tur·al (strukґchər-əl) pertaining to or affecting the structure.Medical dictionary. 2011.