cross section

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cross section

also cross-sec·tion (krôs′sĕk′shən, krŏs′-)
n.
1.
a. A section formed by a plane cutting through an object, usually at right angles to an axis.
b. A piece so cut or a graphic representation of such a piece.
2. Physics A quantity, measured in units of barns, used to express the probability of an encounter between particles over a given area in a collision. Also called collision cross section.
3. Statistics A sample meant to be representative of a whole population.
4. Informal A variety; a diversity.

cross section

n
1. (Mathematics) maths a plane surface formed by cutting across a solid, esp perpendicular to its longest axis
2. (Mathematics) 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) surveying a vertical section of a line of ground at right angles to a survey line
6. (General Physics) 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 and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

cross′ sec`tion

n.
1. a section made by a plane cutting something transversely, esp. at right angles to the longest axis.
2. a representative sample showing all characteristic parts, relationships, etc., of the whole.
3. a vertical section of the ground surface taken at right angles to a survey line.
4. Physics. a measure of the probability, expressed as the effective area of a given particle, that one particle will interact with another.
cross′-sec′tion, v.t.
ThesaurusAntonymsRelated WordsSynonymsLegend:
 Noun 1 cross section - a section created by a plane cutting a solid perpendicular to its longest axisprofile - a vertical section of the Earth's crust showing the different horizons or layersplane section, section - (geometry) the area created by a plane cutting through a solid 2 cross section - a sample meant to be representative of a whole populationsample - a small part of something intended as representative of the wholestatistics - a branch of applied mathematics concerned with the collection and interpretation of quantitative data and the use of probability theory to estimate population parameters 3 cross section - (physics) the probability that a particular interaction (as capture or ionization) will take place between particles; measured in barnsprobability, chance - a measure of how likely it is that some event will occur; a number expressing the ratio of favorable cases to the whole number of cases possible; "the probability that an unbiased coin will fall with the head up is 0.5"atomic physics, nuclear physics, nucleonics - the branch of physics that studies the internal structure of atomic nuclei
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations
section efficace

cross section

n (Bio) → ; (of population) → campione m (rappresentativo) (Topography) →
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995
References in periodicals archive ?
In this regard, demonstratively executed on the basis of the mathematical relations (2) and (3), taking into account the nonlinear change in the specific electrical conductivity [[gamma].sub.i] of the material of the cores (shells) of the CCP during its Joule heating by SC current [i.sub.k(t)], the calculation refinement of numerical values for the coefficient [C.sub.ik], directly used to determine by (1) the permissible cross sections [S.sub.il], is an electrotechnically justified and expedient action.
In pretensioned type, the strands are pretensioned before casting, and then it is essential that the prestress level in various cross sections should be different.
In this paper, the scattering cross sections for the practical nonspherical mineral aerosols are investigated, and modeling of the scattering cross sections for the feldspar, quartz, and red clay is conducted.
These mathematical relations provides a systematic set of solutions that can very well describe the behavior of according cross sections at any given depth.
One of the important questions in the theoretical calculation of the particle production cross sections in nuclear collisions is that whether the factorization theorem [87-90] of collinear singularities is valid or not in this case (note that it is established in the case of hadronic collisions).
The cross sections of 90Zr(n,2n)89Zr and 96Zr(n,2n)95Zr reactions in the neutron energy range 14.5MeV was measured by the activation technique.
Additionally, raster logs can be used to create cross sections.
Berkowitz presents students, academics, researchers, and professionals working in a variety of contexts with the companion text to his previously published Atomic and Molecular Photoabsorption: Absolute Total Cross Sections, including a selection of absolute partial cross sections for many of the same species as in the earlier work.
student Alice DeSimone, indicates the cross sections increase even more with decreasing water coverage.
So there is a need for measuring the scattering cross sections at forward angles using a different experimental method involving minimum corrections.

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