cubic

Short definition from Wiktionary

Adjective

1. 1
   Used in the names of units of volume formed by multiplying a unit of length by itself twice.
2. 2
   Relating to polynomials of the form ax³+bx²+cx+d.
3. 3
   Having three equal axes and all angles 90°.

Noun

1. 1
   A cubic curve.