normal pedal curve

normal pedal curve

[′nȯr·məl ′ped·əl ‚kərv]
(mathematics)
The normal pedal curve of a given curve C with respect to a fixed point P is the locus of the foot of the perpendicular from P to the normal to C.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.