Amoeba: Also ameba. A single-celled (protozoan) organism that constantly changes shape. The word "ameba" is from the Greek "amoibe" meaning "change." Ameba can infect the bowels to cause diarrhea and the liver to cause abscess formation. SLIDESHOW Super Tips to Boost Digestive Health: Bloating, Constipation, and More See Slideshow From Digestive Disorders Resources What Is Exocrine Pancreatic Insufficiency?How Ulcerative Colitis Affects Your BodyWhy Is Your Ulcerative Colitis Getting Worse? Featured Centers What Are the Best PsA Treatments for You?Understanding Biologics 10 Things People With Depression Wish You Knew Health Solutions From Our Sponsors Shot-Free MS Treatment Your Child and COVID-19
