An Affine Transformation in which the scale is reduced. A dilation is also known as a Contraction or Homothecy. Any dilation which is not a simple translation has a unique Fixed Point. The opposite of a dilation is an Expansion.

**References**

Coxeter, H. S. M. and Greitzer, S. L. *Geometry Revisited.* Washington, DC: Math. Assoc. Amer., pp. 94-95, 1967.

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1999-05-24