What does the word tubercle mean?
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1. A circumscribed, rounded, solid elevation on the skin, mucous membrane, or surface of an organ. 2. The lesion of tuberculosis, consisting of a small isolated nodule or aggregation of nodules, formed of epithelioid and giant cells, which are prone to undergo caseation. 3. Same as tuberculosis. 4. A slight elevation from the surface of a bone giving attachment to a muscle or ligament; tuberosity. 5. In dentistry, a cusp.
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An eminence. A morbid product causing tuberculosis.
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[ Latin] A small nodule; especially a small rough prominence upon a bone. Acoustic t., see Tuberculum acusticum. Genital t., see Genital. Gray t. of Rolando, a mass of gray matter into which the caput cornu posterioris expands in the medulla; forming a projection on the posterior surface of the latter. Laminated t., the nodule of the cerebellum. T. of Lower, see Lower’s tubercle.
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[ Latin] A circumscribed solid elevation of the skin larger than a papule; i. e., varying in size from 3 to 20 mm.; as Syphilitic t’s. Anatomical t., Dissection t., Post-mortem t., see under Dissection.
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[ Latin] An infective neoplasm, probably a granuloma, although by many regarded as a variety of lymphoma, consisting in its typical form( Gray t., Miliary t.) of a grayish translucent mass of small round cells( interspersed, according to some, with a reticulated connective tissue) containing often giant cells and surrounded by a zone of proliferating tissue( spindle-shaped and multinucleated connective-tissue cells). Resorption t., a miliary t. developing in the lymph-passages close to another( primary) miliary t. Yellow t. ( Crude t.), a larger mass of yellow, friable, caseous material representing according to many, the later stages of the first form, which is very prone to undergo caseous degeneration. Both forms contain the T. bacillus( see Bacillus tuberculosis), the specific irritation due to which is the cause of the formation of t’s.
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Usage examples for tubercle
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Why should not tenants and workers require health certificates stating that neither house nor working place is infected with tubercle bacilli? – Civics and Health by William H. Allen
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Each is inserted superiorly into the lateral tubercle of the lower end of the first phalanx, and inferiorly to the side of the second phalanx, their most inferior fibres becoming finally fixed to the extremities of the navicular bone, where they form the postero- lateral ligaments of the pedal articulation. – Diseases of the Horse's Foot by Harry Caulton Reeks
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