the flow of a fluid through a vessel or valve in the body in a direction opposite to normal

the majority of leg ulcer patients are elderly with simple superficial vein reflux

the main culprit is bile reflux, a backup of digestive fluid that is supposed to remain in the small intestine.

the process of boiling a liquid so that any vapour is liquefied and returned to the stock

the mixture was heated at reflux under nitrogen

(of a fluid) flow backwards through a vessel or valve in the body

acidic secretions of the stomach can reflux back upwards

boil or cause to boil in circumstances such that the vapour returns to the stock of liquid after condensing

the liquid is allowed to reflux until the thermometer records the lowest temperature possible

the solutions were refluxed for 9–12 hours