a small rounded projection or excrescence, as on a bone or on the surface of the body.
a small, firm, rounded nodule or swelling.
such a swelling as the characteristic lesion of tuberculosis.
Botany. a tuberlike swelling or nodule.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use tubercle in a sentence
There are a number of bacilli, called acid-fast bacilli, which stain in the same way as the tubercle bacillus.
The sputum of more advanced cases resembles that of chronic bronchitis, with the addition of tubercle bacilli and elastic fibers.
These globular masses usually contain many tubercle bacilli.
tubercle bacilli are nearly always present, although animal inoculation may be necessary to detect them.
Ordinarily, no attempt is made to identify any but the tubercle bacillus and the gonococcus.
British Dictionary definitions for tubercle
any small rounded nodule or elevation, esp on the skin, on a bone, or on a plant
any small rounded pathological lesion of the tissues, esp one characteristic of tuberculosis
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for tubercle
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.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.