cross sec·tion(pluralcross sec·tions) or cross-sec·tion(pluralcross-sec·tions)
noun
Definition:
1. plane cutting through object: a plane surface formed by cutting through an object at right angles to an axis, especially the longest axis
2. something cut in cross section: a piece cut as part of a cross section, or an image of such a piece draw a cross section of a cone
3. representative sample: a sample of something that represents all or most of the different parts that the whole contains polled a cross section of the residents
4. physics probability of particle interaction: a measure of the probability of an interaction such as fission or ionization occurring between two elementary particles
