denoting or relating to a linear measure that is raised to the third power: a cubic metre Abbreviation cu., c
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(maths) of, relating to, or containing a variable to the third power or a term in which the sum of the exponents of the variables is three
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(crystallog) Also isometric, regular. relating to or belonging to the crystal system characterized by three equal perpendicular axes. The unit cell of cubic crystals is a cube with a lattice point at each corner (simple cubic) and one in the cube's centre (body-centred cubic), or a lattice point at each corner and one at the centre of each face (face-centred cubic)
Involving a number or a variable that has been raised to the third power.
Relating to a crystal having three axes of equal length intersecting at right angles. The mineral pyrite has cubic crystals. Also called isometric. See illustration at crystal.