▪ denoting a unit of measurement equal to the volume of a cube whose side is one of the linear unit specified: "15 billion cubic meters of water"
▪ involving the cube (and no higher power) of a quantity or variable: "a cubic equation"
▪ of or denoting a crystal system or three-dimensional geometric arrangement having three equal axes at right angles.
noun
1. a cubic equation, or a curve described by one.
Word Originlate 15th century (in the sense ‘involving the cube (and no higher power)’): from Old French cubique, or via Latin from Greek kubikos, from kobos ‘cube’.
