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Cu·bic Cu·bic·al a.

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.

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