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E layer

Syllabification: E lay·er

Definition of E layer in English:

noun

A layer of the ionosphere able to reflect medium-frequency radio waves.
Example sentences
  • The effect of the Ampére force on inertio-gravity (IG) waves in the partially ionized ionospheric E-layer is considered.
  • At the fully-developed stage, the fully-extended luminous body connected the cloud top at 15km with the E-layer ionosphere at 90km.

Origin

1930s: arbitrary use of the letter E, + layer.

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