a. Zool. [f. next + -OUS.] Dwelling in rock or stone; produced by or pertaining to mussels of the genus Lithodomus.
1862. Dana, Man. Geol., 588. Nine feet above this they are penetrated by lithodomous or boring shells.
1875. Lyell’s Princ. Geol., II. II. xxx. 172. Deposits, which envelop the pillars below the zone of lithodomous perforations.
