The definition of a cross section is a section of something that has been cut down the middle to show what is inside.
An example of a cross section is what you see on the inside when you cut a layered sandwich in half.
- a cutting through something, esp. at a right angle
- the plane surface so exposed
- a drawing or photograph of a plane surface exposed by or as if by such a cutting
- a piece, slice, or section () prepared in this manner
- a sample that has enough of each kind in it to show what the whole is like
- Nuclear Physics a measure of the probability that a nuclear reaction will take place, under specified conditions, between two particles or a particle and another target: usually expressed in terms of the effective area a single target presents to the incoming particle
- Surveying a vertical section of the ground surface taken at right angles to a survey line
- a. A section formed by a plane cutting through an object, usually at right angles to an axis.b. A piece so cut or a graphic representation of such a piece.
- Physics A quantity, measured in units of barns, used to express the probability of an encounter between particles over a given area in a collision. Also called collision cross section.
- Statistics A sample meant to be representative of a whole population.
- Informal A variety; a diversity.
(plural cross sections)
- Alternative spelling of cross section.