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  • cross section
    cross section
    noun
    a section made by a plane cutting anything transversely, especially at right angles to the longest axis.
  • cross-section
    cross-section
    adjective
    Also cross-sectional. of or relating to a cross section.
Synonyms

cross section

1 American  
[kraws sek-shuhn, kros] / ˈkrɔs ˌsɛk ʃən, ˈkrɒs /

noun

cross sections plural
  1. a section made by a plane cutting anything transversely, especially at right angles to the longest axis.

  2. a piece so cut off.

  3. a photograph, diagram, or other pictorial representation of such a section.

  4. the act of cutting anything across.

  5. a typical selection; a sample showing all characteristic parts, relationships, etc..

    a cross section of American opinion.

  6. Surveying. a vertical section of the ground surface taken at right angles to a survey line.

  7. Also called nuclear cross sectionPhysics. a quantity expressing the effective area that a given nucleus presents as a target to a bombarding particle, giving a measure of the probability that the particle will induce a reaction.


cross-section 2 American  
[kraws-sek-shuhn, kros-] / ˈkrɔsˈsɛk ʃən, ˈkrɒs- /

adjective

  1. Also cross-sectional. of or relating to a cross section.


verb (used with object)

  1. to make or divide into a cross section.

cross section British  

noun

  1. maths a plane surface formed by cutting across a solid, esp perpendicular to its longest axis

  2. a section cut off in this way

  3. the act of cutting anything in this way

  4. a random selection or sample, esp one regarded as representative

    a cross section of the public

  5. surveying a vertical section of a line of ground at right angles to a survey line

  6. 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

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

cross section Scientific  
  1. In particle physics, an expression of the probability of the occurrence of an event, typically the scattering of subatomic particles, over a given area.


Other Word Forms

Derived Forms

Inflected Forms

Nouns

Etymology

Origin of cross section1

First recorded in 1825–35

Origin of cross-section2

First recorded in 1875–80

Vocabulary lists containing cross-section

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Figure 5.49 Cross section in the xy -plane of the paraboloid in Figure 5.48.

From Textbooks • Mar. 30, 2016

Cross section through the base of the proboscis showing diverticulum wall and proboscis gland.

From Journal of Entomology and Zoology Volume Eleven, Number Two, June 1919 by Various

Cross section of Fort Deposit Cave at 26 feet 145 27.

From Archeological Investigations Bureau of American Ethnology, Bulletin 76 by Fowke, Gerard

Cross section through the center of the proboscis.

From Journal of Entomology and Zoology Volume Eleven, Number Two, June 1919 by Various

Figure 25 Cross section of the wood of western larch showing fissures in the thick-walled cells of the late wood.

From The Mechanical Properties of Wood Including a Discussion of the Factors Affecting the Mechanical Properties, and Methods of Timber Testing by Record, Samuel J.

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