Tuber

tū′bėr, n. a knob in roots: a rounded, fleshy underground stem, as in the potato, formed by a part of the stem becoming thick and fleshy: a swelling.— ns. Tuber′culum , Tū′bercule , a little tuber: a small rounded elevation on a bodily organ.— adjs. Tuberif′erous , bearing tubers; Tū′beriform .— ns. Tuberos′ity , Tū′berousne .— adjs. Tū′berous , Tū′berōse , having, or consisting of, tubers: knobbed. [L. tuber , a swelling, from root of L. tumēre , to swell.]