Definition:Cubic


 * Geometry
 * Cubic: An adjective meaning shaped like a cube. Also cubical.


 * Algebra
 * Cubic equation: an equation of the form $a x^3 + b x^2 + c x + d$


 * Polynomial theory
 * Cubic polynomial: a polynomial of degree $3$


 * Graph theory
 * Cubic graph: a graph whose vertices all have degree $3$