tubercle

/T UW0 B ER0 K AH0 L/
noun
  1. 1

    A round nodule, small eminence, or warty outgrowth, especially those found on bones for the attachment of a muscle or ligament or small elevations on the surface of a tooth.

  2. 2

    A small rounded wartlike protuberance of the roots of some leguminous plants; the lip of certain orchids, cacti.

  3. 3

    A small rounded nodule forming the characteristic lesion of tuberculosis.

Source: https://en.wiktionary.org/wiki/tubercle