quadratic[
kwɑd'rætɪk]
a. 
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n.
次
程

quadratic
[ noun ]
- an equation in which the highest power of an unknown quantity is a square
<noun.communication>
- a polynomial of the second degree
<noun.cognition>
[ adj ]- of or relating to or resembling a square
<adj.pert>
quadratic shapes
- of or relating to the second power
<adj.pert>
quadratic equation

Quadratic \Quad*rat"ic\, a. [Cf. F. quadratique.]
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.