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Noun: cross section  krós sek-shun
  1. A section created by a plane cutting a solid perpendicular to its longest axis
     
  2. (statistics) a sample meant to be representative of a whole population
     
  3. (physics) the probability that a particular interaction (as capture or ionization) will take place between particles; measured in barns
Adjective: cross-section  krós'sek-shun
  1. Representing a plane made by cutting across something at right angles to its length
    "cross-section views of the neck";
    - cross-sectional

Derived forms: cross sections

See also: crosswise

Type of: chance, plane section, probability, sample, section

Encyclopedia: Cross section

Cross-section