verb (used with object), rec·ti·fied, rec·ti·fy·ing.
- to make, put, or set right; remedy; correct: He sent them a check to rectify his account.
- to put right by adjustment or calculation, as an instrument or a course at sea.
- Chemistry. to purify (especially a spirit or liquor) by repeated distillation.
- Electricity. to change (an alternating current) into a direct current.
- to determine the length of (a curve).
- Astronomy, Geography. to adjust (a globe) for the solution of any proposed problem.
verb -fies, -fying or -fied (tr)
- to put right; correct; remedy
- to separate (a substance) from a mixture or refine (a substance) by fractional distillation
- to convert (alternating current) into direct current
- maths to determine the length of (a curve)
- to cause (an object) to assume a linear motion or characteristic
c.1400, from Old French rectifier, literally “to make straight” (14c.), from Late Latin rectificare “make right,” from Latin rectus “straight” (see right (adj.1)) + root of facere “to make” (see factitious). Related: Rectified; rectifying.
- To set right; correct.
- To refine or purify, especially by distillation.