Evolute

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Revision as of 02:17, 26 March 2007 by Ok (talk | contribs) (Based on Glossary of Bridge Terminology; Chapter LXXX of J.A.L. Waddell's Bridge Engineering (New York: Wiley, 1916))
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A curve which is the locus of the centre of curvature of another curve, or the envelope of the normals to the latter.