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nonrelativistic quantum mechanics

American  
[non-rel-uh-ti-vis-tik, non-] / ˈnɒn rɛl ə tɪˈvɪs tɪk, ˌnɒn- /

noun

Physics.
  1. a form of quantum mechanics that excludes relativistic effects and is approximately applicable to low-energy problems, as the structure of atoms and molecules.


Etymology

Origin of nonrelativistic quantum mechanics

non- + relativistic