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)
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.
Origin: F. Rectifier, LL. Rectificare; L. Rectus right _ -ficare (in comp) to make. See Right, and -fy.