a section made by a plane cutting anything transversely, especially at right angles to the longest axis.
a piece so cut off.
a photograph, diagram, or other pictorial representation of such a section.
the act of cutting anything across.
a typical selection; a sample showing all characteristic parts, relationships, etc..
a cross section of American opinion.
Surveying. a vertical section of the ground surface taken at right angles to a survey line.
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.
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
First recorded in 1825–35
First recorded in 1875–80
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Figure 5.49 Cross section in the xy -plane of the paraboloid in Figure 5.48.
From Textbooks • Mar. 30, 2016
Cross section of Fort Deposit Cave at 35½ feet 146 30.
From Archeological Investigations Bureau of American Ethnology, Bulletin 76 by Fowke, Gerard
Cross section of Fort Deposit Cave at 90 feet 147 34.
From Archeological Investigations Bureau of American Ethnology, Bulletin 76 by Fowke, Gerard
Cross section of the marginal ridge of the moraine on the south slope of the Devil's nose 107 40.
From The Geography of the Region about Devils Lake and the Dalles of the Wisconsin by Atwood, Wallace W.
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.
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
