{ Cu"bic (k?"b?k), Cu"bic*al (-b?- kal), } a. [L. cubicus, Gr. &?;&?;&?;&?;&?;: cf. F. cubique. See Cube.] 1. Having the form or properties of a cube; contained, or capable of being contained, in a cube.

2. (Crystallog.) Isometric or monometric; as, cubic cleavage. See Crystallization.

Cubic equation, an equation in which the highest power of the unknown quantity is a cube. -- Cubic foot, a volume equivalent to a cubical solid which measures a foot in each of its dimensions. -- Cubic number, a number produced by multiplying a number into itself, and that product again by the same number. See Cube. -- Cubical parabola(Geom.), two curves of the third degree, one plane, and one on space of three dimensions.