The Collaborative International Dictionary of English v.0.48:
Rectify \Rec"ti*fy\ (-f?), v. t. [imp. & p. p. Rectified
(-f?d); p. pr. & vb. n. Rectifying (-f?`?ng).] [F.
rectifier, LL. rectificare; L. rectus right + -ficare (in
comp.) to make. See Right, and -fy.]
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
I meant to rectify my conscience. --Shak.
This was an error of opinion which a conflicting
opinion would have rectified. --Burke.
2. (Chem.) 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. (Com.) 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.
Syn: To amend; emend; correct; better; mend; reform; redress;
adjust; regulate; improve. See Amend.
[1913 Webster] Rectilineal