# Cubic definition

kyo͝obĭk
(mathematics) Of the third power, order, or degree.
Of or relating to a crystalline form that has three equal axes at right angles to each other; isometric.
Having the shape of a cube.
Having three dimensions.
Having a volume equal to a cube whose edge is of a stated length.

A cubic foot.

A cubic expression, curve, or equation.
noun
Having the shape of a cube.
Having three dimensions, or having the volume of a cube whose length, width, and depth (or height) each measure the given unit.

A cubic foot.

Designating or of a crystal system having three axes of equal length, each of which intersects at right angles with the others.
(math.) Of the third power or degree; relating to the cubes of numbers or quantities.
Referring to a volume unit of measurement.
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.
(geometry) Used in the names of units of volume formed by multiplying a unit of length by itself twice.

Cubic metre, cubic foot.

(algebraic geometry) Of a class of polynomial of the form.
(crystallography) Having three equal axes and all angles 90°.

Cubic cleavage.

(algebraic geometry) A cubic curve.
noun
Shaped similar to a cube.

Singular:
cubic
Plural:
cubics

## Origin of cubic

• From Middle French cubique