A protuberance is a body part that bulges (protrudes) outward from a surface.
For example, the ears protrude from the head.
Taber's Medical Dictionary Online website. www.tabers.com/tabersonline. Accessed March 15, 2023.
Review Date 2/2/2023
Updated by: Linda J. Vorvick, MD, Clinical Professor, Department of Family Medicine, UW Medicine, School of Medicine, University of Washington, Seattle, WA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.