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tubercle
noun
tu·ber·cle
| \ ˈtü-bər-kəl
, ˈtyü-\
, ˈtyü-\
Definition of tubercle
1
: a small knobby prominence or excrescence especially on a plant or animal : nodule: such 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 sense b
2
: a small abnormal discrete lump in the substance of an organ or in the skin
especially
: the specific lesion of tuberculosis
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More Definitions for tubercle
tubercle
noun
tu·ber·cle
| \ ˈt(y)ü-bər-kəl
\
\
Medical Definition of tubercle
1
: a small knobby prominence or excrescence: as
a
: a prominence on the crown of a molar tooth
b
: a small rough prominence (as the greater tubercle or adductor tubercle) on a bone usually being smaller than a tuberosity and serving for the attachment of one or more muscles or ligaments
c
: an eminence near the head of a rib that articulates with the transverse process of a vertebra
d
: any of several prominences (as the acoustic tubercle) in the central nervous system that mark the nuclei of various nerves
2
: a small discrete lump in the substance of an organ or in the skin
especially
: the specific lesion of tuberculosis consisting of a packed mass of epithelioid cells, giant cells, disintegration products of white blood cells and bacilli, and usually a necrotic center