Rhab"do*lith (?), n. [Gr. "ra`bdos a rod + -lith.] A minute calcareous rodlike structure found both at the surface and the bottom of the ocean; -- supposed by some to be a calcareous alga.

Rhab"do*lith (?), n. [Gr. "ra`bdos a rod + -lith.] A minute calcareous rodlike structure found both at the surface and the bottom of the ocean; -- supposed by some to be a calcareous alga.