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

Quadratic a. : Tetragonal.

Quadratic a. : Pertaining to terms of the second degree; as, a quadratic equation, in which the highest power of the unknown quantity is a square.

Example:
What is the difference between a Quadratic Function and a Quadratic Equation?

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