Main Entry: tu·ber·cle

Pronunciation: \ˈtü-bər-kəl, ˈtyü-\

Function: noun

Etymology: Latin tuberculum, diminutive of tuber

Date: 1578

1 : a small knobby prominence or excrescence especially on a plant or animal : nodule: as a : a protuberance near the head of a rib that articulates with the transverse process of a vertebra b : any of several prominences in the central nervous system c : nodule b
2 : a small abnormal discrete lump in the substance of an organ or in the skin; especially : the specific lesion of tuberculosis