Learn how to say Cubical correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word cubic:
1having the shape of a cube:
a cubic room
denoting a crystal system or three-dimensional geometrical arrangement having three equal axes at right angles:
the sodium and chloride ions form two intersecting cubic structures
2denoting a unit of measurement equal to the volume of a cube whose side is one of the linear units specified:
15 billion cubic metres of water
3involving the cube (and no higher power) of a quantity or variable:
a cubic equation
a cubic equation, or a curve described by one.