tractrix

noun trac·trix \ˈtraktriks\

Definition of tractrix

plural

tractrices

\trakˈtrī(ˌ)sēz\
  1. :  a curve in which the part of the tangent between the point of tangency and a given straight line is constant and which is an involute of a catenary

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Origin and Etymology of tractrix

New Latin, from Latin tractus (past participle of trahere to draw) + -trix — more at draw


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a brief usually trivial fact

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