Main Entry: di·ver·tic·u·lum

Pronunciation: \ˌdī-vər-ˈtik-yə-ləm\

Function: noun

Inflected Form(s): plural di·ver·tic·u·la \-lə\

1 : an abnormal pouch or sac opening from a hollow organ (as the colon or bladder)
2 : a blind tube or sac branching off from a cavity or canal of the body <the liver is an anterior diverticulum of the intestine—Gordon Alexander>