tubercle

noun tu·ber·cle \ ˈtü-bər-kəl , ˈtyü- \
Updated on: 26 Apr 2018

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 b
2 : a small abnormal discrete lump in the substance of an organ or in the skin; especially : the specific lesion of tuberculosis

Recent Examples of tubercle from the Web

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Origin and Etymology of tubercle

Latin tuberculum, diminutive of tuber


Medical Dictionary

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

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