Definitions
1.nounA quadratic polynomial, function or equation.
2.adjectiveSquare-shaped
3.adjectiveOf a polynomial, involving the second power (square) of a variable but no higher powers, as ax^2 + bx + c.
4.adjectiveOf an equation, of the form ax^2 + bx + c = 0.
5.adjectiveOf a function, of the form y = ax^2 + bx + c .