1. (a.) Having the form or properties of a cube; contained, or capable of being contained, in a cube.

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

3-D cube-shaped cubed cubic cubiform cuboid diced dimensional flat foursquare fourth-dimensional oblong orthogonal proportional quadrangular quadrate quadriform quadrilateral rectangular rhombic rhomboid space space-time spatial spatiotemporal spherical square stereoscopic superficial surface tetragonal tetrahedral three-dimensional trapezohedral trapezoid two-dimensional volumetric