Tubercle definition

to͝obər-kəl, tyo͝o-
Frequency:
A small rounded projecting part or outgrowth, such as a wartlike excrescence on the roots of some leguminous plants or a knoblike process in the skin or on a bone.
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(medicine) A nodule or swelling, especially a mass of lymphocytes and epithelioid cells forming the characteristic lesion of tuberculosis.
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Any small, rounded projection or process.
  • (bot.) Any of the wartlike growths on the roots of some plants.
  • (anat.) A knoblike elevation, as on a bone.
  • (med.) Any abnormal hard nodule or swelling; specif., the typical nodular lesion of tuberculosis.
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An anatomical nodule.
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A small elevation on the surface of a tooth.
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A nodule or swelling, especially a mass of lymphocytes and epithelioid cells forming the characteristic granulomatous lesion of tuberculosis.
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A small rounded projection, swelling, or lump, as on the roots of legumes or on bodily tissue, especially the cluster of inflammatory cells that form in the lungs in tuberculosis.
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(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.
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(botany) A small rounded wartlike protuberance of the roots of some leguminous plants; the lip of certain orchids, cacti.
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(pathology) A small rounded nodule forming the characteristic lesion of tuberculosis.
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Other Word Forms

Noun

Singular:
tubercle
Plural:
tubercles

Origin of tubercle

  • Latin tūberculum diminutive of tūber lump tuber

    From American Heritage Dictionary of the English Language, 5th Edition