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Definitions and Synonyms of cross section | Another word for cross section | What is cross section?

Definition 1: (physics) the probability that a particular interaction (as capture or ionization) will take place between particles; measured in barns - [noun denoting attribute]

(cross section is a kind of ...) 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" "if that phone call is for me, chances are it's my wife"

(cross section belongs to category ...) the branch of physics that studies the internal structure of atomic nuclei

Definition 2: a sample meant to be representative of a whole population - [noun denoting cognition]

(cross section is a kind of ...) a small part of something intended as representative of the whole

(cross section belongs to category ...) a branch of applied mathematics concerned with the collection and interpretation of quantitative data and the use of probability theory to estimate population parameters

Definition 3: a section created by a plane cutting a solid perpendicular to its longest axis - [noun denoting location]

(cross section is a kind of ...) (geometry) the area created by a plane cutting through a solid

(... is a kind of cross section ) a vertical section of the Earth's crust showing the different horizons or layers

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