quadratic


From The Collaborative International Dictionary of English v.0.48:

Quadratic \Quad*rat"ic\, a. [Cf. F. quadratique.]
   [1913 Webster]
   1. Of or pertaining to a square, or to squares; resembling a
      quadrate, or square; square.
      [1913 Webster]

   2. (Crystallog.) Tetragonal.
      [1913 Webster]

   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.
      [1913 Webster]
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