[ˈrɛktɪfʌɪ], (Verb)

Definitions:
- put right; correct
(e.g: mistakes made now cannot be rectified later)

- convert (alternating current) to direct current
(e.g: the current from the transformers is rectified by high-voltage diodes)

- find a straight line equal in length to (a curve)
(e.g: his methods of rectifying the cycloid)

- purify or refine (a substance) by repeated or continuous distillation
(e.g: butyl lactate was rectified, and the purified butyl lactate was sequentially hydrolysed)


Phrases:

Origin:
late Middle English: from Old French rectifier, from medieval Latin rectificare, from Latin rectus ‘right’