Pylorus (pi-lo'rus). The circular opening of the stomach into the
duodenum.
Pyrosis (pir'os-is). Heartburn; a burning sensation in the gullet and
stomach with sour eructation, due to acid dyspepsia.
Rectum (rek'tum). The lower part of the bowel (of the large intestine).
Recurrent (re'kur'ent). Returning.
Refrigerant (re-frig'er-ant). Coating, lessening fever.
Regimen (rej'im-en). The systematic regulation of the diet and habits for some special purpose.
Regurgitate (re-gur-je'-tat). Flowing back or against a normal direction.
Resolution (rez-o-lu'shun). The return of a part to a normal state after a pathologic (disease) process.
Resolvents (rez-ol'vent). An agent that causes resolution.
Respiration (res-pir-a'shun). The act or function of breathing; the act by which air is drawn in and expelled from the lungs, including inspiration and expiration.