from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. 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.
  • n. Pathology A nodule or swelling, especially a mass of lymphocytes and epithelioid cells forming the characteristic lesion of tuberculosis.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. 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.
  • n. A small rounded wartlike protuberance of the roots of some leguminous plants; the lip of certain orchids, cacti.
  • n. A small rounded nodule forming the characteristic lesion of tuberculosis.

from the GNU version of the Collaborative International Dictionary of English

  • n. A small knoblike prominence or excrescence, whether natural or morbid
  • n. A small mass or aggregation of morbid matter; especially, the deposit which accompanies scrofula or phthisis. This is composed of a hard, grayish, or yellowish, translucent or opaque matter, which gradually softens, and excites suppuration in its vicinity. It is most frequently found in the lungs, causing consumption.

from The Century Dictionary and Cyclopedia

  • n. A little tuber, or tubercule; a small tuberosity; especially, a small projection of a bone, for the attachment of a ligament or tendon, as of the femur, hyoid, scaphoid, ulna, tibia, zygoma, etc. See tuberculum and tuberosity.
  • n. A roughness on the humerus for the insertion of the deltoid muscle: usually called deltoid ridge.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a protuberance on a bone especially for attachment of a muscle or ligament
  • n. a swelling that is the characteristic lesion of tuberculosis
  • n. small rounded wartlike protuberance on a plant


from The American Heritage® Dictionary of the English Language, 4th Edition

Latin tūberculum, diminutive of tūber, lump; see tuber.


  • Running obliquely downward and medialward from the tubercle is the intertrochanteric line (spiral line of the femur); it winds around the medial side of the body of the bone, below the lesser trochanter, and ends about 5 cm. below this eminence in the linea aspera.

    II. Osteology. 6c. 3. The Femur

  • A prominence, of variable size, occurs at the junction of the upper part of the neck with the greater trochanter, and is called the tubercle of the femur; it is the point of meeting of five muscles: the Glutæus minimus laterally, the Vastus lateralis below, and the tendon of the Obturator internus and two Gemelli above.

    II. Osteology. 6c. 3. The Femur

  • The volar surface is concave above, and elevated at its lower and lateral part into a rounded projection, the tubercle, which is directed forward and gives attachment to the transverse carpal ligament and sometimes origin to a few fibers of the Abductor pollicis brevis.

    II. Osteology. 6b. The Hand. 1. The Carpus

  • In the female a deep groove forms around the phallus and separates it from the rest of the cloacal tubercle, which is now termed the genital tubercle.

    XI. Splanchnology. 3. The Urogenital Apparatus

  • The adductor tubercle, which is situated on the upper and back part of the medial epicondyle, gives attachment to the round tendon of the adductor magnus, and marks the level of the epiphysial line and of the upper limit of the trochlear surface of the femur.

    Manual of Surgery Volume Second: Extremities—Head—Neck. Sixth Edition.

  • TB is caused by the bacterium Mycobacterium tuberculosis, which is also called a tubercle bacillus.

    Yahoo! Answers: Latest Questions

  • This containing structure, called a tubercle, physically protects the bacteria from being destroyed by the immune system. - latest science and technology news stories

  • The idea, known as tubercle technology, is being considered for airplanes, submarines and wind turbines, but the first product on the market is the Altra Air ceiling fan from Envira-North Technologies.

    Original Signal - Transmitting Gadgets

  • Tuberculosis, or 'TB', is a disease caused by a germ (called the tubercle bacterium or Mycobacterium tuberculosis).

    Health News from Medical News Today

  • It is said of a plant or a fruit or a tubercle which is very fibrous. jerezano

    I learned a new word today


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  • "For his nutriment he shewed how he would feed himself exclusively upon a diet of savoury tubercles and fish and coneys there ..."

    Joyce, Ulysses, 14

    January 20, 2007