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tubercle (plural tubercles)
- (anatomy) 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.
- (botany) A small rounded wartlike protuberance of the roots of some leguminous plants; the lip of certain orchids, cacti.
- (pathology) A small rounded nodule forming the characteristic lesion of tuberculosis.
round nodule on a bone
wartlike protuberance on the roots of some plants