relativistic quantum mechanics

noun

, Physics.

1. quantum mechanics based on a wave equation satisfying the mathematical requirements of the special theory of relativity and applying to particles of any velocity.

Word History and Origins

Origin of relativistic quantum mechanics¹

First recorded in 1935–40

Example Sentences

One of the great moments in twentieth century science came when Paul Dirac married quantum mechanics with Einstein’s Special Theory of Relativity to produce relativistic quantum mechanics.

From Scientific American