Rēc'ti-fi-cā'tion, n.

n. [Fr. rectification, Pr. rectificacio, Sp. rectificacion, It. rettificazione. See RECTIFY.] 1. The act or operation of rectifying, or of correcting, amending, or setting right, that which is wrong or erroneous; as, the rectification of errors, mistakes, or abuses. After the rectification of his views, he was incapable of compromise with profounder shapes of error. De Quincey.

2. (Chem.) The process of refining or purifying any substance by repeated distillation, which separates the grosser parts; as, the rectification of spirits or sulphuric acid.
3. (Geom.) The determination of a straight line, whose length is equal to a portion of a curve.

Rectification of a globe, the adjustment of it, preparatory to the solution of a proposed problem.