- quadratic - of or relating to or resembling a square; "quadratic shapes"
- quadratic - of or relating to the second power; "quadratic equation"
- quadratic - of or relating to the second power; "quadratic equation"
- quadratic equation, quadratic - an equation in which the highest power of an unknown quantity is a square
--1 is a kind of equation
- quadratic, quadratic polynomial - a polynomial of the second degree
--2 is a kind of polynomial, multinomial