spinor

noun
spin·​or | \ ˈspi-nər How to pronounce spinor (audio) , -ˌnȯr\

Definition of spinor

: a vector whose components are complex numbers in a two-dimensional or four-dimensional space and which is used especially in the mathematics of the theory of relativity

First Known Use of spinor

1931, in the meaning defined above

History and Etymology for spinor

International Scientific Vocabulary spin + -or (as in vector)

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