rectify

(v) math: determine the length of
- rectify a curve
(v) reduce to a fine, unmixed, or pure state; separate from extraneous matter or cleanse from impurities
- refine sugar
refine,
(v) bring, lead, or force to abandon a wrong or evil course of life, conduct, and adopt a right one
- The Church reformed me
- reform your conduct
reform, reclaim, regenerate,
(v) set straight or right
- remedy these deficiencies
- rectify the inequities in salaries
- repair an oversight
remediate, remedy, amend, repair,
(v) make right or correct
- Correct the mistakes
- rectify the calculation
correct, right,
(v) convert into direct current
- rectify alternating current

refine reform reclaim regenerate remediate remedy amend repair correct right

falsify

rectifying tube rectifying valve