Eustachian tube: A 3-4 cm long tube extending from middle ear to nasopharynx
Eosinophilia: Eosinophils are a type of white blood cells. Their number increases in the presence of a parasitic infection or an ongoing allergic reaction.
Barium meal: The ingestion of barium sulfate to outline the esophagus, stomach & small intestine during X-rays or fluoroscopic examination.
Sputum: Mucous expelled from the lung by coughing.
Intussusception: Slipping or telescoping of one part of intestine into another part just below it. Requires emergency surgical intervention.
Volvulus: Twisting of a part of intestine over another to cause obstruction.