# cubic

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## cubic

**1.**having the shape of a cube

**2.**

**a.**having three dimensions

**b.**denoting or relating to a linear measure that is raised to the third power

**3.**

*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

**4.**

*Crystallog*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**).

**5.**

*Maths*

**a.**a cubic equation, such as

*x*

^{3}+

*x*+ 2 = 0

**b.**a cubic term or expression

Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

## cubic

[′kyü·bik] (mechanics)

Denoting a unit of volume, so that if

*x*is a unit of length, a cubic*x*is the volume of a cube whose sides have length 1*x*; for example, a cubic meter, or a meter cubed, is the volume of a cube whose sides have a length of 1 meter. Abbreviated cu.McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

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