rare. [ad. med.L. variola VARIOLA.] Something resembling a small-pox marking or pustule in appearance or formation:
a. Ent. A foveole or small fovea.
1826. Kirby & Sp., Entomol., IV. xlvi. 270. Variole, a shallow impression like a mark of the small-pox.
b. Geol. A spherular concretion of a variolite.
1890. Q. Jrnl. Geol. Soc., XLVI. 312. The spherulites or varioles [of the variolite-diabase] are grouped or drawn out in bands parallel to the surface.