To turn back; to return.
To postpone an arranged event or appointment.
To change the time in a time zone to an earlier time.
To return something to its original place.
To drink fast; to knock down alcohol.
To flow back or return.
To boil a liquid in a vessel having a reflux condenser
A technique, using a reflux condenser, allowing one to boil the contents of a vessel over an extended period.
The backwards flow of any fluid.
The leaking of stomach acid up into the oesophagus.