1. (

• rectify ,

) math: determine the length of; "rectify a curve" ;

2. (

• refine ,
• rectify ,

) reduce to a fine, unmixed, or pure state; separate from extraneous matter or cleanse from impurities; "refine sugar" ;

3. (

• reform ,
• reclaim ,
• regenerate ,
• rectify ,

) 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" ;

4. (

• rectify ,
• remediate ,
• remedy ,
• repair ,
• amend ,

) set straight or right; "remedy these deficiencies"; "rectify the inequities in salaries"; "repair an oversight" ;

5. (

• correct ,
• rectify ,
• right

) make right or correct; "Correct the mistakes"; "rectify the calculation" ;

6. (

• rectify ,

) convert into direct current; "rectify alternating current" ;