Pronunciation: (rek'tu-fī"), [key]
v.t., -fied, -fy•ing.
1. to make, put, or set right; remedy; correct: He sent them a check to rectify his account.
2. to put right by adjustment or calculation, as an instrument or a course at sea.
3. purify (esp. a spirit or liquor) by repeated distillation.
4. change (an alternating current) into a direct current.
5. to determine the length of (a curve).
6. Astron., adjust (a globe) for the solution of any proposed problem.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

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