dimensional analysis

dimensional analysis

noun Physics.
a method for comparing the dimensions of the physical quantities occurring in a problem to find relationships between the quantities without having to solve the problem completely. Compare dimension (def. 6).

Origin:
1920–25
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Dimensional analysis is always a great word to know.
So is fission. Does it mean:
the splitting of the nucleus of an atom into nuclei of lighter atoms, accompanied by the release of energy
to be reflected many times, as sound waves from the walls of a confined space
Dictionary.com's 21st Century Lexicon
Main Entry:  dimensional analysis
Part of Speech:  n
Definition:  a method of mathematical analysis that focuses on the dimensions of length, mass, time, etc., which aims to simplify a problem by dealing only with essential parameters; a technique of calculating with physical quantities in which units are included and treated in the same way as numbers
Etymology:  mathematics
Dictionary.com's 21st Century Lexicon
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