1. To make or set right; to correct from a wrong, erroneous, or false state; to amend; as, to rectify errors, mistakes, or abuses; to rectify the will, the judgment, opinions; to rectify disorders. I meant to rectify my conscience. (Shak) This was an error of opinion which a conflicting opinion would have rectified. (Burke)
2. (Science: chemistry) To refine or purify by repeated distillation or sublimation, by which the fine parts of a substance are separated from the grosser; as, to rectify spirit of wine.
3. To produce (as factitious gin or brandy) by redistilling low wines or ardent spirits (whisky, rum, etc), flavoring substances, etc, being added. To rectify a globe, to adjust it in order to prepare for the solution of a proposed problem.
Synonym: To amend, emend, correct, better, mend, reform, redress, adjust, regulate, improve. See Amend.
Origin: F. Rectifier, LL. Rectificare; L. Rectus right – -ficare (in comp) to make. See Right, and -fy.