cross section

noun

Definition of cross section 

1a : a cutting or piece of something cut off at right angles to an axis also : a representation of such a cutting

b : section sense 3b

2 : a measure of the probability of an encounter between particles such as will result in a specified effect (such as scattering or capture)

3 : a composite representation typifying the constituents of a thing in their relations

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Other Words from cross section

cross-section transitive verb
cross-sectional \ ˈkrȯs-​ˈsek-​shnəl , -​shə-​nᵊl \ adjective

Synonyms for cross section

Synonyms

sample, sampler, sampling, selection, slice

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Examples of cross section in a Sentence

a detailed cross section of the human brain The drawing showed the human brain in cross section. The class surveyed a cross section of the student body. The people in our neighborhood are a representative cross section of American society.
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Recent Examples on the Web

This small, intensely crossed section of the border has been in a state of metamorphosis for several years with the upgrade and expansion of the San Ysidro Port of Entry. Sandra Dibble, sandiegouniontribune.com, "Study sees two countries, one neighborhood at the U.S.-Mexico border," 11 June 2018 The 12 to 15 activists attracted to Leon Valley last month were a fairly typical cross section of the national movement, some of them said. Bruce Selcraig, San Antonio Express-News, "Courting arrest for online clicks and the First Amendment," 9 July 2018 So will efforts to attract a cross section of residents and visitors on an ongoing basis. John King, SFChronicle.com, "Civic Center makeover: Here’s the plan to revamp the heart of SF," 29 June 2018 All of it illustrated with stark and clear animation, showing x-ray views and cross sections that live-action footage could never hope to capture with such clarity. Eric Limer, Popular Mechanics, "The Disney Cartoon That Teaches You How to Fire an Anti-Tank Rifle," 3 Dec. 2015 Oscar de la Renta, 24 Newbury The couture clothier opened its first Boston pop-up location earlier this spring, and will sell a cross section of its most popular designs, chief executive Alex Bolen says. Janelle Nanos, BostonGlobe.com, "Here’s a look at the new shops opening on Newbury Street this summer," 25 May 2018 This cross section of a mouse spinal cord, from 1899, shows radial glia cells, the Rodney Dangerfields of brain cells. Sharon Begley, STAT, "In ‘Beautiful Brain,’ the secrets of neurons emerge in Nobel-winning scientist’s ink and pencil drawings," 3 May 2018 The majority of the crowds have been peaceful at the mass rallies, which have drawn first-time demonstrators, as well as families, in what appears to be a wide cross section of Palestinians in Gaza. Washington Post, BostonGlobe.com, "Palestinian journalist killed under Israeli fire in Gaza," 7 Apr. 2018 The Super Hornet Block III will have improvements to the plane’s electronics, radar cross section, and range, allowing it to fight alongside the F-35C Joint Strike Fighter for the foreseeable future. Kyle Mizokami, Popular Mechanics, "The Navy's Super Hornets Are Getting an Upgrade," 22 Mar. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'cross section.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of cross section

1835, in the meaning defined at sense 1a

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Time Traveler for cross section

The first known use of cross section was in 1835

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More Definitions for cross section

cross section

noun

English Language Learners Definition of cross section

: a view or drawing that shows what the inside of something looks like after a cut has been made across it

: a small group that includes examples of the different types of people or things in a larger group

cross section

noun

Kids Definition of cross section

1 : a cutting made across something (as a log or an apple)

2 : a view showing what the inside of something looks like after a cut has been made through it

3 : a small group that includes examples of the different types of people or things in a larger group a cross section of voters

cross section

noun

Medical Definition of cross section 

: a cutting or piece of something cut off at right angles to an axis also : a representation of such a cutting

Other Words from cross section

cross-sectional \ ˌkrȯ(s)-​ˈsek-​shnəl, -​shən-​ᵊl \ adjective

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