Others
- Rectification, in astrology
- Yan'an Rectification Movement (Zheng Feng), in Chinese history
- Chinese philosophy: see Confucianism for rectification of names (zhèngmíng)
- Rectification (geometry) – truncating a polytope by marking the midpoints of all its edges, and cutting off its vertices at those points
- Rectifier (electricity) – converter of AC to DC
- Image rectification – adjustment of images to simplify stereo vision or to map images to a map coordinate system (GIS)
- Rectification (law)
- Rectifiable curve, in mathematics
- Rectifiable set, in mathematics
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