restoration after decay or dilapidation; renewal; repair
The action or process of rectifying.
Any of a number of Chinese and Filipino communist purges. See rectification movement.
The adjustment of a globe preparatory to the solution of a proposed problem.
Purification of a substance through repeated or continuous distillation.
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.
The determination of a straight line whose length is equal to a portion of a curve.
A procedure that attempts to determine a person's time of birth based on events in their life.