Appleton layer

Ap·​ple·​ton layer | \ ˈapəltən-, -tᵊn- \

Definition of Appleton layer

: f layer

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First Known Use of Appleton layer

1931, in the meaning defined above

History and Etymology for Appleton layer

after Sir Edward Appleton †l965 English physicist

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The first known use of Appleton layer was in 1931

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Cite this Entry

“Appleton layer.” Dictionary, Merriam-Webster, Accessed 24 Oct. 2020.

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