quadratic

Of, relating to, or containing quantities of the second degree.

In algebra, involving the square and no higher power of the unknown quantity or variable of the second degree; of two dimensions.

In crystallography, tetragonal or dimetric: applied to the system that includes the square prism and related forms. See crystallography.

In algebra, an equation in which the highest power of the unknown quantity is the second, the general form being

plural That branch of algebra which treats of quadratic equations.

Of or pertaining to a square, or to squares; resembling a quadrate, or square; square.

Tetragonal.

Pertaining to terms of the second degree.

square-shaped

of a polynomial, involving the second power (square) of a variable but no higher powers, as .