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  1. Oxford American Dictionary

    Dirac, Paul

    • IPA[dəˈräk]

    美式

    • ph.
      (1902–84), English theoretical physicist; full name Paul Adrian Maurice Dirac. He described the behavior of the electron, including its spin, and predicted the existence of the positron by applying Albert Einstein's theory of relativity to quantum mechanics. Nobel Prize for Physics (1933), shared with Erwin Schrödinger.