Cross Section (noun) Definition, Meaning & Examples

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noun
  1. a section made by a plane cutting anything transversely, especially at right angles to the longest axis.
  2. a piece so cut off.
  3. a photograph, diagram, or other pictorial representation of such a section.
  4. the act of cutting anything across.
  5. a typical selection; a sample showing all characteristic parts, relationships, etc.: a cross section of American opinion.
  6. a vertical section of the ground surface taken at right angles to a survey line.
  7. a quantity expressing the effective area that a given nucleus presents as a target to a bombarding particle, giving a measure of the probability that the particle will induce a reaction.
adjective
  1. of or relating to a cross section.
verb (used with object)
  1. to make or divide into a cross section.
noun
  1. a plane surface formed by cutting across a solid, esp perpendicular to its longest axis
  2. a section cut off in this way
  3. the act of cutting anything in this way
  4. a random selection or sample, esp one regarded as representative
  5. a vertical section of a line of ground at right angles to a survey line
  6. a measure of the probability that a collision process will result in a particular reaction. It is expressed by the effective area that one participant presents as a target for the other
    Cross Section (noun) Definition, Meaning & Examples

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