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cross sec·tion

noun
a surface or shape that is or would be exposed by making a straight cut through something, especially at right angles to an axis.
"the cross section of an octahedron is a square"

verb
make a cross section of (something).
"complex triangular terrain models for contour cross-sectioning"

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Cross section

Geometry
In geometry and science, a cross section is the non-empty intersection of a solid body in three-dimensional space with a plane, or the analog in higher-dimensional spaces. Cutting an object into slices creates many parallel cross-sections. Wikipedia
The meaning of CROSS SECTION is a cutting or piece of something cut off at right angles to an axis; also : a representation of such a cutting.
CROSS SECTION from en.m.wikipedia.org
In physics, the cross section is a measure of the probability that a specific process will take place in a collision of two particles.
CROSS SECTION from www.mathsisfun.com
Cross Sections. A cross section is the shape we get when cutting straight through an object. ... The cross section of this object is a triangle. It is like a view ...
CROSS SECTION from study.com
Lesson Summary. A cross section is defined as the shape found when cutting an object parallel to its base with a plane. Cross-sections can come in many shapes.
a small group which represents all of the different types within the total group: The study examined data from 4,100 adults representing a cross ...