Math. [f. flec- root of L. flectĕre to bend + nod-us knot, NODE.] (See quot.) Hence Flecnodal a., pertaining to a flecnode, as flecnodal curve.

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1873.  Salmon, Higher Plane Curves, vi. (1879), 217. Such a node may be considered as the union of an ordinary node with … a point of inflexion … and the node may be termed a flecnode.

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