rectification

noun
rec·​ti·​fi·​ca·​tion | \ ˌrek-tə-fə-ˈkā-shən How to pronounce rectification (audio) \

Medical Definition of rectification

1 : the conversion of alternating to direct current
2 : a process by which distilled spirits are blended together or substantially changed by the addition usually of spirits, flavoring, or coloring material