Pedal curve

(redirected from Contrapedal curve)
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(Geom.) the curve or surface which is the locus of the feet of perpendiculars let fall from a fixed point upon the straight lines tangent to a given curve, or upon the planes tangent to a given surface.

See also: Pedal

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.