Definitions:

1. A chronic inflammatory bowel disease that primarily affects the colon or large intestine, and rectum. NOUN
   • Ulcerative colitis can significantly affect a person's quality of life, but with proper treatment, many people manage to live symptom-free for long periods.
2. A conditon believed to result from an abnormal immune response that mistankenly attacks the tissue of the colon, leading to inflammation. NOUN
   • People with ulcerative colitis often experience periods of remission followed by painful flare-ups.
3. A serious chronic inflammatory disease of the large intestine and rectum characterized by recurrent episodes of abdominal pain, fever, chills, and profuse diarrhea. NOUN
   • Ulcerative colitis can lead to a number of complications, including colorectal cancer.