sporadic E

noun

A meteorological phenomenon where radio waves above a certain frequency are reflected in the atmospheric E region, allowing these radio waves to be received in distances up to 1,200 miles.

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Meanings

nounsporadic E (uncountable)

alternative sporadic-E

  1. uncountablebroadcastingA meteorological phenomenon where radio waves above a certain frequency are reflected in the atmospheric E region, allowing these radio waves to be received in distances up to 1,200 miles.
Cite this entry
APA

sporadic E. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/sporadic%20E

MLA

“sporadic E.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/sporadic%20E. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “sporadic E,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/sporadic%20E.

Source: sporadic E on Wiktionary, CC BY-SA 4.0.