WordReference Random House Unabridged Dictionary of American English © 2026
ma′trix mechan′ics, [Physics.]
  1. Physicsa formulation of non-relativistic quantum mechanics in which physical quantities are represented by matrices and matrix algebra is used to predict the outcome of physical measurements.
Cf. wave mechanics. 
'matrix mechanics' also found in these entries (note: many are not synonyms or translations):
nonrelativistic quantum mechanics - wave mechanics

Forum discussions with the word(s) "matrix mechanics" in the title:


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