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   cross section

   /ˈkrɒs ˌsɛkʃ(ə)n/

   noun

   • 1. a surface or shape exposed by making a straight cut through something, especially at right angles to an axis: "the cross section of an octahedron is a square"
   • ▪ a thin strip of tissue or other material removed by making two straight parallel cuts through it.
   • 2. a typical or representative sample of a larger group: "a cross section of our senior managers"
   • 3. a quantity having the dimensions of an area which expresses the probability of a given interaction between particles.

   verb

   • 1. make a cross section of: "complex triangular terrain models for contour cross-sectioning"

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