Geom. a curve that is the locus of the center of curvature of another curve (called the involute); the envelope of the perpendiculars, or normals, of the involute
Origin of evolutefrom Classical Latin evolutus: see evolution
The locus of the centers of curvature of a given curve.
Origin of evoluteFrom Latin ēvolūtus past participle of ēvolvere to unroll ; see evolve .
- A curve comprising the centers of curvature of another curve.