Of the nature of (carbonate of) lime; composed of or containing lime or lime-stone.

= calcareous, adj.

Yielding or containing (carbonate of) lime. (Chiefly Geology.)

< argillous, adj., as in argillo-calcareous adj. calcareous with an admixture of clay. argillo-calcite n. a clayey limestone.

= calciferous, adj.