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′-sec′tion·al adj.

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
ˌcross-ˈsectional adj

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.
cross′-sec′tional, adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.cross section - a section created by a plane cutting a solid perpendicular to its longest axis
profile - a vertical section of the Earth's crust showing the different horizons or layers
plane 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 population
sample - a small part of something intended as representative of the whole
statistics - 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 barns
probability, 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
Translations
section efficace

cross section

n (Bio) → sezione f trasversale; (of population) → campione m (rappresentativo) (Topography) → profilo trasversale
References in periodicals archive ?
Cross-sectioning can be beneficial to printed circuit board assembly (PCBA) qualification as a means to understand process capability and identify potential design and manufacturing concerns.
Until recently, cross-sectioning in a standard focused ion beam (FIB) was a blind process: the sample surface was imaged before cutting to determine the area of interest and the sample was milled and polished with a pre-defined milling pattern.
The benefits of cross-sectioning and staining are not as great in otoliths that are still growing rapidly in sagittal diameter.