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Webster 1913 Edition
Quadratic
Quad-rat′ic
,Adj.
[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 squareWebster 1828 Edition
Quadratic
QUADRAT'IC
,Adj.
Quadratic equation, in algebra, an equation in which the unknown quantity is of two dimensions, or raised to the second power; or one in which the highest power of the unknown quantity is a square.