Diverticula is the medical term to describe small pouches that stick out of the colon wall. A diverticulum (singular) is a small pouch with a narrow neck that sticks out from (protrudes from) the wall of the gut (intestine). 'Diverticula' means more than one diverticulum. They can develop on any part of the gut but usually occur in the colon (sometimes called the large bowel or large intestine).
This is a companion discussion topic for the original article at https://patient.info/digestive-health/diverticula-diverticulosis-diverticular-disease-diverticulitis