<p><strong>Verb</strong></p><ul><li>(used with object) rec·ti·fied, rec·ti·fy·ing.</li><li>To make, put, or set right; remedy; correct: He sent them a check to rectify his account.</li><li>Synonyms: amend, emend, mend</li><li>Antonyms: muddle, worsen</li><li>To put right by adjustment or calculation, as an instrument or a course at sea.</li><li>Synonyms: straighten, regulate, adjust</li><li>Chemistry: to purify (especially a spirit or liquor) by repeated distillation.</li><li>Electricity: to change (an alternating current) into a direct current.</li><li>To determine the length of (a curve).</li><li>Astronomy, Geography: to adjust (a globe) for the solution of any proposed problem.</li></ul>