(mathematics, number theory, algebra) A homogeneous polynomial of degree 2 in a given number of variables.

plural of quadratic residue

(number theory, modular arithmetic) For given positive integer n, any integer that is congruent to some square m² modulo n.

plural of quadratic formula

(mathematics) An irrational number that is the solution of a quadratic equation of the form ax²+bx+c=0, where a, b, and c are integers and a ≠ 0.

plural of quadrate bone

(anatomy) A bone between the base of the lower jaw and the skull in most vertebrates other than mammals. In reptiles and birds it articulates the lower jaw with the skull; in mammals it is represented by the incus.

Obsolete form of quadratic.

Obsolete form of quadratic.

plural of quadratick