tūbercŭlum, i, n. dim. [1. tuber],
a small swelling , bump , or protuberance; a boil , pimple , tubercle : in gingivis, Cels. 6, 13: in capite, id. 7, 6: fabae, an excrescence , Plin. 22, 22, 45, § 91; 11, 11, 12, § 29.
·noun A <<Tubercle>>. ...
Webster's Dictionary of the English Language