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.
To slip or slide back physically; to turn back.
To fall back again; to slide or turn back into a former state or practice.
To return to a vice, especially self-harm or alcoholism, failing to maintain abstinence.
To recur; to worsen, be aggravated (after a period of improvement).
An occasion when a person becomes ill again after a period of improvement
The act or situation of relapsing.