\Tu"ber*ous\, a. [L. tuberosus: cf. F. tub['e]reux. See {Tuber}, and cf. also {Tuberose}.] 1. Covered with knobby or wartlike prominences; knobbed. 2. (Bot.) Consisting of, or bearing, tubers; resembling a tuber. -- {Tu"ber*ous*ness}, n.