rectification

Etymology

From Middle English rectificacioun, from Old French rectificacion, from Late Latin rectificatio.

noun

1. The action or process of rectifying.
   the rectification of an error; the rectification of spirits
   1847, Thomas De Quincey, Secret Societies, originally published in parts in Tait's Edinburgh Magazine, reprinted in 1863, Thomas De Quincey, Judas Iscariot and Other Writings, page 274, […] as after the rectification of his views, he was incapable of compromise with profounder shapes of error.
2. (geometry) The determination of a straight line whose length is equal to a portion of a curve.
3. (geometry) The truncation of a polyhedron by replacing each vertex with a face that passes though the midpoint of each edge connected to the vertex; an analogous procedure on a polytope of dimension higher than 3.
4. (astronomy) The adjustment of a globe preparatory to the solution of a proposed problem.
5. (chemistry, chemical engineering) Purification of a substance through repeated or continuous distillation.
6. (politics, historical) Any of a number of Chinese and Filipino communist purges. See rectification movement.
7. (astrology) A procedure that attempts to determine a person's time of birth based on events in their life.