Tubercle
Definition
A tubercle is a small rounded point of a bone. It also refers to a nodule attached to bone, mucous membrane (moist layer lining parts of the body), or skin.
The term tubercle is less commonly used to refer to skin irritation resulting from a tuberculosis (TB) infection.
References
Taber's Medical Dictionary Online website. www.tabers.com/tabersonline. Accessed April 15, 2021.