pathology - any deviation from a healthy or normal condition

esophageal reflux, gastroesophageal reflux, oesophageal reflux - reflux of stomach contents into the esophagus

hepatojugular reflux - a venous reflux occurring in congestive heart failure

ureterorenal reflux - a backflow of urine from the ureter into the renal pelvis

vesicoureteral reflux - a backflow of urine from the bladder into the ureter

ebbtide - the tide while water is flowing out

flow, flowing - the motion characteristic of fluids (liquids or gases)