Rectification

Rectification has the following technical meanings:

Mathematics

 * Rectification (geometry), truncating a polytope by marking the midpoints of all its edges, and cutting off its vertices at those points
 * Rectifiable curve, in mathematics
 * Rectifiable set, in mathematics

Science

 * GHK flux equation, in biology, a process in cell membranes

Technology

 * Image rectification, adjustment of images to simplify stereo vision or to map images to a map coordinate system (GIS)
 * The function of a rectifier, a device that converts alternating electrical current to direct current
 * Rectified airspeed, a means of displaying the airspeed of high-speed aircraft
 * Rectification (chemical/process engineering), countercurrent distillation, a unit operation also used for the production of rectified spirit (see Distillation)

Other uses

 * Rectification (law), an equitable legal remedy whereby a court orders a change in a written document to reflect what it should have said in the first place
 * Rectification, in astrology, "rectification of the birth time" is used when natal birth time is imprecise
 * Rectification movement (disambiguation)
 * Rectification of names (zhèngmíng), a practice in Confucian philosophy
 * Rectification, a process that creates a rectified spirit (alcohol)