Pronunciation: (tOO'bur-kul, tyOO'-), [key]
1. a small rounded projection or excrescence, as on a bone or on the surface of the body.
a. a small, firm, rounded nodule or swelling.
b. such a swelling as the characteristic lesion of tuberculosis.
3. Bot.a tuberlike swelling or nodule.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.