Pronunciation: (ri-gûr"ji-tā'shun), [key]
1. the act of regurgitating.
2. voluntary or involuntary return of partly digested food from the stomach to the mouth.
3. Pathol.the reflux of blood through defective heart valves.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.