WordReference Random House Unabridged Dictionary of American English © 2026
di•ver•tic•u•lo•sis
(dī′vər tik′yə lō′sis),USA pronunciation n. [Pathol.]
- Pathologythe presence of saclike herniations of the mucosal layer of the colon through the muscular wall, common among older persons and usually producing no symptoms except occasional rectal bleeding.
- diverticul(um) + -osis 1915–20