Skip to definition.
Get the FREE one-click dictionary software for Windows or the iPhone/iPad and Android apps

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
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

Derived forms: cross sections

See also: crosswise

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

Encyclopedia: Cross-section

Cross section