a. Now rare. [ad. L. extūberant-em, pr. pple. of extūberāre to swell out, f. ex- out + tūber a swelling.] Swelling or standing out, protuberant.
1578. Banister, Hist. Man, V. 70. The Orifices [of the ventricle] towardes the interiour partes, obtaine a swelled, or more extuberant part like a circle.
1654. Gayton, Pleas. Notes, IV. viii. 223. Shaking her extuberant and reverst lips.
1703. Moxon, Mech. Exerc., 216. Scrapes off the extuberant Mettle.
1793. Smeaton, Edystone L., § 197. A substance … which … in time becomes so extuberant as to deform the face of the walls.
1819. in Todd; and in mod. Dicts.
