a. [f. L. cavernula, dim. of caverna cavern, cavity + -OUS.] Characterized by minute cavities, porous.
1757. Lewis, in Phil. Trans., L. 154. The mass … turned out cavernulous and brittle.
1803. J. Black, Lect. Chem., III. 326 (L.). Copper will not cast either solid or tenacious, but is cavernulous and weak.
