cross section
Use Cross section in a sentencecross section
noun
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 section. Physics. 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.
Origin:
1825–35
1825–35
00:10
Cross section
is always a great word to know.
So is interrobang. Does it mean:
| a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question. |
| the offspring of a zebra and a donkey. |
Dictionary.com Unabridged
ʃən, ˈkrɒs-
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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Based on the Random House Dictionary, © Random House, Inc. 2013.
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Link To cross section
Collins
World English Dictionary
| cross section | |
| —n | |
| 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 |
| cross-'sectional | |
| —adj | |
Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Science Dictionary
| 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. |
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Example sentences
Layer after layer, the laser traces the cross section of the cup, building it from the bottom up--including the handle.
As always, there was a cross section of experts testifying at the hearing.
Here, among a curated cross section of his people, he was secure.
Give him a cross section of the human body and watch him work.
Image for cross section
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