cross-section
[ kraws-sek-shuh n, kros- ]
/ ˈkrɔsˈsɛk ʃən, ˈkrɒs- /
adjective
Also cross-sec·tion·al.
of or relating to a cross section.
verb (used with object)
to make or divide into a cross section.
Origin of cross-section
First recorded in 1875–80
Words nearby cross-section
Definition for cross-section (2 of 2)
cross section
noun
Origin of cross section
First recorded in 1825–35
Example sentences from the Web for cross-section
British Dictionary definitions for cross-section
cross section
noun
maths
a plane surface formed by cutting across a solid, esp perpendicular to its longest axis
a section cut off in this way
the act of cutting anything in this way
a random selection or sample, esp one regarded as representative
a cross section of the public
surveying
a vertical section of a line of ground at right angles to a survey line
physics
a measure of the probability that a collision process will result in a particular reaction. It is expressed by the effective area that one participant presents as a target for the other
Derived forms of cross section
cross-sectional, adjectiveScientific definitions for cross-section
cross section
In particle physics, an expression of the probability of the occurrence of an event, typically the scattering of subatomic particles, over a given area.