What is "semicubical"

Semicubical \Sem`i*cu"bic*al\, a. (Math.) Of or pertaining to the square root of the cube of a quantity.

Semicubical parabola, a curve in which the ordinates are proportional to the square roots of the cubes of the abscissas.

a. (context mathematics English) Of or relating to the square root of the cube of a quantity.