adj. 1 cube-shaped. 2 of three dimensions. 3 involving the cube (and no higher power) of a number (cubic equation). 4 Crystallog. having three equal axes at right angles. cubic content the volume of a solid expressed in cubic metres. cubic metre etc. the volume of a cube whose edge is one metre etc.
[ F cubique or L cubicus f. Gk kubikos (as CUBE) ]