Meanings
Synonyms & antonyms
proper nounSynonym of F region.
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Origin
Named after the English physicist Edward Appleton.
Full word history & related roots →Cite this entry
APA
Appleton layer. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/Appleton%20layer
MLA
“Appleton layer.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Appleton%20layer. Accessed November 3, 2026.
Chicago
WatkinsX Dictionary, s.v. “Appleton layer,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/Appleton%20layer.
Source: Appleton layer on Wiktionary, CC BY-SA 4.0.