rectification

1. The action or process of rectifying. (countable, uncountable) · the rectification of an error; the rectification of spirits
2. The determination of a straight line whose length is equal to a portion of a curve. (countable, uncountable)
3. 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. (countable, uncountable)
4. The adjustment of a globe preparatory to the solution of a proposed problem. (countable, uncountable)
5. Purification of a substance through repeated or continuous distillation. (countable, uncountable)
6. Any of a number of Chinese and Filipino communist purges. See rectification movement. (countable, uncountable)
7. A procedure that attempts to determine a person's time of birth based on events in their life. (countable, uncountable)

Plural rectifications