ˈrektəˌfī(ə)r, -īə noun
( -s )
1. : one that rectifies
2.
a. : one who blends different whiskeys or who mixes whiskey with distilled water and alcohol to obtain a desired proof
b. : a part of a distilling apparatus in which the more volatile portions are separated by evaporation and condensation ; especially : column 3d
3. : a device (as a vacuum tube) for converting alternating current into direct current
4. : a part of a gas refrigerating apparatus in which the water vapor is condensed from the ammonia vapor