- 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 (noun) 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
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. 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.
- From the smallest cross-section of a DNA molecule to the proportion between your height and the distance between your navel and your foot, the Golden Ratio in humans may be the design template of the body.
- There's a pretty good cross-section of the population eager to chop off their long locks in order to help those with cancer have one less uncomfortable thing to deal with (baldness).
- The circle that encompasses the cross-section of the bars has always been explained as both a symbol of the eternal nature of the universe and never ending faith in God.
- You'll find jobs within the state sector (those that report to the crown) to include a cross-section of almost all the jobs in New Zealand, from farming to office jobs.
- The Review won't invite students to take surveys unless school administrators have given them the OK, but the cross-section of approved colleges is quite varied.