Quadratic

a.	1.
	1.	Of or pertaining to a square, or to squares; resembling a quadrate, or square; square.
	2.	(Crystallog.) Tetragonal.
	3.	(Alg.) Pertaining to terms of the second degree; as, a quadratic equation, in which the highest power of the unknown quantity is a square.

Noun	1.	quadratic - an equation in which the highest power of an unknown quantity is a square Synonyms: quadratic equation
	2.	quadratic - a polynomial of the second degree Synonyms: quadratic polynomial
Adj.	1.	quadratic - of or relating to or resembling a square; "quadratic shapes"
	2.	quadratic - of or relating to the second power; "quadratic equation"

foursquare, square