I. A rough, unhewn stone, as it comes from the quarry, a quarry-stone, used for walls.
A. Plur. (so most freq.), Vitr. 1, 2, 8; 7, 6, 1; Cato, R. R. 38, 3; Varr. ap. Non. p. 96, 5 al.: “in eam insulam materiem, calcem, caementa, arma convexit,” Cic. Mil. 27, 74; so id. Div. 2, 47, 99; id. Q. Fr. 3, 9, 7; Liv. 36, 22, 11; 21, 11, 8; Hor. C. 3, 1, 35; Tac. G. 16.—
II. Caementa marmorea, pieces that fly off from marble in working, chips of marble: “caementa marmorea, sive assulae,” Vitr. 7, 6, 1.