Hypertext Webster Gateway: "quadratic"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
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.
From WordNet (r) 1.7 (wn)
quadratic
adj 1: of or relating to or resembling a square; "quadratic shapes"
2: of or relating to the second power; "quadratic equation"
n 1: an equation in which the highest power of an unknown
quantity is a square [syn: {quadratic equation}]
2: a polynomial of the second degree [syn: {quadratic
polynomial}]
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